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Examples: SDL/OpenGL: Tabs to spaces
This commit is contained in:
ocornut
@@ -28,162 +28,162 @@ static unsigned int g_VboHandle = 0, g_VaoHandle = 0, g_ElementsHandle = 0;
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// - in your Render function, try translating your projection matrix by (0.5f,0.5f) or (0.375f,0.375f)
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void ImGui_ImplSdlGL3_RenderDrawLists(ImDrawData* draw_data)
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{
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// Backup GL state
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GLint last_program; glGetIntegerv(GL_CURRENT_PROGRAM, &last_program);
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GLint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
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GLint last_array_buffer; glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer);
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GLint last_element_array_buffer; glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &last_element_array_buffer);
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GLint last_vertex_array; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array);
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GLint last_blend_src; glGetIntegerv(GL_BLEND_SRC, &last_blend_src);
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GLint last_blend_dst; glGetIntegerv(GL_BLEND_DST, &last_blend_dst);
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GLint last_blend_equation_rgb; glGetIntegerv(GL_BLEND_EQUATION_RGB, &last_blend_equation_rgb);
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GLint last_blend_equation_alpha; glGetIntegerv(GL_BLEND_EQUATION_ALPHA, &last_blend_equation_alpha);
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// Backup GL state
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GLint last_program; glGetIntegerv(GL_CURRENT_PROGRAM, &last_program);
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GLint last_texture; glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
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GLint last_array_buffer; glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer);
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GLint last_element_array_buffer; glGetIntegerv(GL_ELEMENT_ARRAY_BUFFER_BINDING, &last_element_array_buffer);
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GLint last_vertex_array; glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array);
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GLint last_blend_src; glGetIntegerv(GL_BLEND_SRC, &last_blend_src);
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GLint last_blend_dst; glGetIntegerv(GL_BLEND_DST, &last_blend_dst);
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GLint last_blend_equation_rgb; glGetIntegerv(GL_BLEND_EQUATION_RGB, &last_blend_equation_rgb);
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GLint last_blend_equation_alpha; glGetIntegerv(GL_BLEND_EQUATION_ALPHA, &last_blend_equation_alpha);
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GLint last_viewport[4]; glGetIntegerv(GL_VIEWPORT, last_viewport);
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GLboolean last_enable_blend = glIsEnabled(GL_BLEND);
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GLboolean last_enable_cull_face = glIsEnabled(GL_CULL_FACE);
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GLboolean last_enable_depth_test = glIsEnabled(GL_DEPTH_TEST);
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GLboolean last_enable_scissor_test = glIsEnabled(GL_SCISSOR_TEST);
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GLboolean last_enable_blend = glIsEnabled(GL_BLEND);
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GLboolean last_enable_cull_face = glIsEnabled(GL_CULL_FACE);
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GLboolean last_enable_depth_test = glIsEnabled(GL_DEPTH_TEST);
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GLboolean last_enable_scissor_test = glIsEnabled(GL_SCISSOR_TEST);
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// Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled
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glEnable(GL_BLEND);
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glBlendEquation(GL_FUNC_ADD);
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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glDisable(GL_CULL_FACE);
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glDisable(GL_DEPTH_TEST);
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glEnable(GL_SCISSOR_TEST);
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glActiveTexture(GL_TEXTURE0);
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// Setup render state: alpha-blending enabled, no face culling, no depth testing, scissor enabled
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glEnable(GL_BLEND);
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glBlendEquation(GL_FUNC_ADD);
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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glDisable(GL_CULL_FACE);
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glDisable(GL_DEPTH_TEST);
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glEnable(GL_SCISSOR_TEST);
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glActiveTexture(GL_TEXTURE0);
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// Handle cases of screen coordinates != from framebuffer coordinates (e.g. retina displays)
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ImGuiIO& io = ImGui::GetIO();
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// Handle cases of screen coordinates != from framebuffer coordinates (e.g. retina displays)
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ImGuiIO& io = ImGui::GetIO();
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int fb_width = (int)(io.DisplaySize.x * io.DisplayFramebufferScale.x);
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int fb_height = (int)(io.DisplaySize.y * io.DisplayFramebufferScale.y);
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draw_data->ScaleClipRects(io.DisplayFramebufferScale);
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draw_data->ScaleClipRects(io.DisplayFramebufferScale);
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// Setup orthographic projection matrix
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// Setup orthographic projection matrix
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glViewport(0, 0, (GLsizei)fb_width, (GLsizei)fb_height);
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const float ortho_projection[4][4] =
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{
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{ 2.0f/io.DisplaySize.x, 0.0f, 0.0f, 0.0f },
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{ 0.0f, 2.0f/-io.DisplaySize.y, 0.0f, 0.0f },
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{ 0.0f, 0.0f, -1.0f, 0.0f },
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{-1.0f, 1.0f, 0.0f, 1.0f },
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};
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glUseProgram(g_ShaderHandle);
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glUniform1i(g_AttribLocationTex, 0);
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glUniformMatrix4fv(g_AttribLocationProjMtx, 1, GL_FALSE, &ortho_projection[0][0]);
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glBindVertexArray(g_VaoHandle);
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const float ortho_projection[4][4] =
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{
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{ 2.0f/io.DisplaySize.x, 0.0f, 0.0f, 0.0f },
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{ 0.0f, 2.0f/-io.DisplaySize.y, 0.0f, 0.0f },
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{ 0.0f, 0.0f, -1.0f, 0.0f },
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{-1.0f, 1.0f, 0.0f, 1.0f },
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};
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glUseProgram(g_ShaderHandle);
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glUniform1i(g_AttribLocationTex, 0);
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glUniformMatrix4fv(g_AttribLocationProjMtx, 1, GL_FALSE, &ortho_projection[0][0]);
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glBindVertexArray(g_VaoHandle);
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for (int n = 0; n < draw_data->CmdListsCount; n++)
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{
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const ImDrawList* cmd_list = draw_data->CmdLists[n];
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const ImDrawIdx* idx_buffer_offset = 0;
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for (int n = 0; n < draw_data->CmdListsCount; n++)
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{
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const ImDrawList* cmd_list = draw_data->CmdLists[n];
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const ImDrawIdx* idx_buffer_offset = 0;
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glBindBuffer(GL_ARRAY_BUFFER, g_VboHandle);
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glBufferData(GL_ARRAY_BUFFER, (GLsizeiptr)cmd_list->VtxBuffer.size() * sizeof(ImDrawVert), (GLvoid*)&cmd_list->VtxBuffer.front(), GL_STREAM_DRAW);
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glBindBuffer(GL_ARRAY_BUFFER, g_VboHandle);
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glBufferData(GL_ARRAY_BUFFER, (GLsizeiptr)cmd_list->VtxBuffer.size() * sizeof(ImDrawVert), (GLvoid*)&cmd_list->VtxBuffer.front(), GL_STREAM_DRAW);
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_ElementsHandle);
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glBufferData(GL_ELEMENT_ARRAY_BUFFER, (GLsizeiptr)cmd_list->IdxBuffer.size() * sizeof(ImDrawIdx), (GLvoid*)&cmd_list->IdxBuffer.front(), GL_STREAM_DRAW);
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, g_ElementsHandle);
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glBufferData(GL_ELEMENT_ARRAY_BUFFER, (GLsizeiptr)cmd_list->IdxBuffer.size() * sizeof(ImDrawIdx), (GLvoid*)&cmd_list->IdxBuffer.front(), GL_STREAM_DRAW);
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for (const ImDrawCmd* pcmd = cmd_list->CmdBuffer.begin(); pcmd != cmd_list->CmdBuffer.end(); pcmd++)
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{
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if (pcmd->UserCallback)
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{
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pcmd->UserCallback(cmd_list, pcmd);
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}
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else
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{
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glBindTexture(GL_TEXTURE_2D, (GLuint)(intptr_t)pcmd->TextureId);
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glScissor((int)pcmd->ClipRect.x, (int)(fb_height - pcmd->ClipRect.w), (int)(pcmd->ClipRect.z - pcmd->ClipRect.x), (int)(pcmd->ClipRect.w - pcmd->ClipRect.y));
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glDrawElements(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer_offset);
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}
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idx_buffer_offset += pcmd->ElemCount;
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}
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}
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for (const ImDrawCmd* pcmd = cmd_list->CmdBuffer.begin(); pcmd != cmd_list->CmdBuffer.end(); pcmd++)
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{
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if (pcmd->UserCallback)
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{
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pcmd->UserCallback(cmd_list, pcmd);
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}
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else
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{
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glBindTexture(GL_TEXTURE_2D, (GLuint)(intptr_t)pcmd->TextureId);
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glScissor((int)pcmd->ClipRect.x, (int)(fb_height - pcmd->ClipRect.w), (int)(pcmd->ClipRect.z - pcmd->ClipRect.x), (int)(pcmd->ClipRect.w - pcmd->ClipRect.y));
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glDrawElements(GL_TRIANGLES, (GLsizei)pcmd->ElemCount, sizeof(ImDrawIdx) == 2 ? GL_UNSIGNED_SHORT : GL_UNSIGNED_INT, idx_buffer_offset);
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}
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idx_buffer_offset += pcmd->ElemCount;
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}
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}
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// Restore modified GL state
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glUseProgram(last_program);
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glBindTexture(GL_TEXTURE_2D, last_texture);
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// Restore modified GL state
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glUseProgram(last_program);
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glBindTexture(GL_TEXTURE_2D, last_texture);
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glBindVertexArray(last_vertex_array);
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glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, last_element_array_buffer);
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glBlendEquationSeparate(last_blend_equation_rgb, last_blend_equation_alpha);
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glBlendFunc(last_blend_src, last_blend_dst);
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if (last_enable_blend) glEnable(GL_BLEND); else glDisable(GL_BLEND);
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if (last_enable_cull_face) glEnable(GL_CULL_FACE); else glDisable(GL_CULL_FACE);
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if (last_enable_depth_test) glEnable(GL_DEPTH_TEST); else glDisable(GL_DEPTH_TEST);
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if (last_enable_scissor_test) glEnable(GL_SCISSOR_TEST); else glDisable(GL_SCISSOR_TEST);
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glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);
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glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, last_element_array_buffer);
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glBlendEquationSeparate(last_blend_equation_rgb, last_blend_equation_alpha);
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glBlendFunc(last_blend_src, last_blend_dst);
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if (last_enable_blend) glEnable(GL_BLEND); else glDisable(GL_BLEND);
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if (last_enable_cull_face) glEnable(GL_CULL_FACE); else glDisable(GL_CULL_FACE);
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if (last_enable_depth_test) glEnable(GL_DEPTH_TEST); else glDisable(GL_DEPTH_TEST);
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if (last_enable_scissor_test) glEnable(GL_SCISSOR_TEST); else glDisable(GL_SCISSOR_TEST);
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glViewport(last_viewport[0], last_viewport[1], (GLsizei)last_viewport[2], (GLsizei)last_viewport[3]);
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}
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static const char* ImGui_ImplSdlGL3_GetClipboardText()
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{
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return SDL_GetClipboardText();
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return SDL_GetClipboardText();
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}
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static void ImGui_ImplSdlGL3_SetClipboardText(const char* text)
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{
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SDL_SetClipboardText(text);
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SDL_SetClipboardText(text);
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}
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bool ImGui_ImplSdlGL3_ProcessEvent(SDL_Event* event)
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{
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ImGuiIO& io = ImGui::GetIO();
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switch (event->type)
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{
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case SDL_MOUSEWHEEL:
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{
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if (event->wheel.y > 0)
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g_MouseWheel = 1;
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if (event->wheel.y < 0)
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g_MouseWheel = -1;
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return true;
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}
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case SDL_MOUSEBUTTONDOWN:
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{
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if (event->button.button == SDL_BUTTON_LEFT) g_MousePressed[0] = true;
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if (event->button.button == SDL_BUTTON_RIGHT) g_MousePressed[1] = true;
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if (event->button.button == SDL_BUTTON_MIDDLE) g_MousePressed[2] = true;
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return true;
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}
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case SDL_TEXTINPUT:
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{
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ImGuiIO& io = ImGui::GetIO();
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io.AddInputCharactersUTF8(event->text.text);
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return true;
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}
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case SDL_KEYDOWN:
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case SDL_KEYUP:
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{
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int key = event->key.keysym.sym & ~SDLK_SCANCODE_MASK;
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io.KeysDown[key] = (event->type == SDL_KEYDOWN);
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io.KeyShift = ((SDL_GetModState() & KMOD_SHIFT) != 0);
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io.KeyCtrl = ((SDL_GetModState() & KMOD_CTRL) != 0);
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io.KeyAlt = ((SDL_GetModState() & KMOD_ALT) != 0);
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return true;
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}
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}
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return false;
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ImGuiIO& io = ImGui::GetIO();
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switch (event->type)
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{
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case SDL_MOUSEWHEEL:
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{
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if (event->wheel.y > 0)
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g_MouseWheel = 1;
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if (event->wheel.y < 0)
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g_MouseWheel = -1;
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return true;
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}
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case SDL_MOUSEBUTTONDOWN:
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{
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if (event->button.button == SDL_BUTTON_LEFT) g_MousePressed[0] = true;
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if (event->button.button == SDL_BUTTON_RIGHT) g_MousePressed[1] = true;
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if (event->button.button == SDL_BUTTON_MIDDLE) g_MousePressed[2] = true;
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return true;
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}
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case SDL_TEXTINPUT:
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{
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ImGuiIO& io = ImGui::GetIO();
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io.AddInputCharactersUTF8(event->text.text);
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return true;
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}
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case SDL_KEYDOWN:
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case SDL_KEYUP:
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{
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int key = event->key.keysym.sym & ~SDLK_SCANCODE_MASK;
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io.KeysDown[key] = (event->type == SDL_KEYDOWN);
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io.KeyShift = ((SDL_GetModState() & KMOD_SHIFT) != 0);
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io.KeyCtrl = ((SDL_GetModState() & KMOD_CTRL) != 0);
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io.KeyAlt = ((SDL_GetModState() & KMOD_ALT) != 0);
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return true;
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}
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}
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return false;
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}
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void ImGui_ImplSdlGL3_CreateFontsTexture()
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{
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// Build texture atlas
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// Build texture atlas
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ImGuiIO& io = ImGui::GetIO();
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unsigned char* pixels;
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int width, height;
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io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height); // Load as RGBA 32-bits for OpenGL3 demo because it is more likely to be compatible with user's existing shader.
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unsigned char* pixels;
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int width, height;
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io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height); // Load as RGBA 32-bits for OpenGL3 demo because it is more likely to be compatible with user's existing shader.
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// Upload texture to graphics system
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GLint last_texture;
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glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
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glGenTextures(1, &g_FontTexture);
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glBindTexture(GL_TEXTURE_2D, g_FontTexture);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
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glGenTextures(1, &g_FontTexture);
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glBindTexture(GL_TEXTURE_2D, g_FontTexture);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels);
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// Store our identifier
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io.Fonts->TexID = (void *)(intptr_t)g_FontTexture;
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// Store our identifier
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io.Fonts->TexID = (void *)(intptr_t)g_FontTexture;
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// Restore state
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glBindTexture(GL_TEXTURE_2D, last_texture);
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@@ -191,79 +191,79 @@ void ImGui_ImplSdlGL3_CreateFontsTexture()
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bool ImGui_ImplSdlGL3_CreateDeviceObjects()
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{
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// Backup GL state
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GLint last_texture, last_array_buffer, last_vertex_array;
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glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
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glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer);
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glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array);
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// Backup GL state
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GLint last_texture, last_array_buffer, last_vertex_array;
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glGetIntegerv(GL_TEXTURE_BINDING_2D, &last_texture);
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glGetIntegerv(GL_ARRAY_BUFFER_BINDING, &last_array_buffer);
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glGetIntegerv(GL_VERTEX_ARRAY_BINDING, &last_vertex_array);
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const GLchar *vertex_shader =
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"#version 330\n"
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"uniform mat4 ProjMtx;\n"
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"in vec2 Position;\n"
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"in vec2 UV;\n"
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"in vec4 Color;\n"
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"out vec2 Frag_UV;\n"
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"out vec4 Frag_Color;\n"
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"void main()\n"
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"{\n"
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" Frag_UV = UV;\n"
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" Frag_Color = Color;\n"
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" gl_Position = ProjMtx * vec4(Position.xy,0,1);\n"
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"}\n";
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const GLchar *vertex_shader =
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"#version 330\n"
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"uniform mat4 ProjMtx;\n"
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"in vec2 Position;\n"
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"in vec2 UV;\n"
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"in vec4 Color;\n"
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"out vec2 Frag_UV;\n"
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"out vec4 Frag_Color;\n"
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"void main()\n"
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"{\n"
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" Frag_UV = UV;\n"
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" Frag_Color = Color;\n"
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" gl_Position = ProjMtx * vec4(Position.xy,0,1);\n"
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"}\n";
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const GLchar* fragment_shader =
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"#version 330\n"
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"uniform sampler2D Texture;\n"
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"in vec2 Frag_UV;\n"
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"in vec4 Frag_Color;\n"
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"out vec4 Out_Color;\n"
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"void main()\n"
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"{\n"
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" Out_Color = Frag_Color * texture( Texture, Frag_UV.st);\n"
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"}\n";
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const GLchar* fragment_shader =
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"#version 330\n"
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"uniform sampler2D Texture;\n"
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||||
"in vec2 Frag_UV;\n"
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"in vec4 Frag_Color;\n"
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||||
"out vec4 Out_Color;\n"
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"void main()\n"
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"{\n"
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" Out_Color = Frag_Color * texture( Texture, Frag_UV.st);\n"
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"}\n";
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g_ShaderHandle = glCreateProgram();
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g_VertHandle = glCreateShader(GL_VERTEX_SHADER);
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g_FragHandle = glCreateShader(GL_FRAGMENT_SHADER);
|
||||
glShaderSource(g_VertHandle, 1, &vertex_shader, 0);
|
||||
glShaderSource(g_FragHandle, 1, &fragment_shader, 0);
|
||||
glCompileShader(g_VertHandle);
|
||||
glCompileShader(g_FragHandle);
|
||||
glAttachShader(g_ShaderHandle, g_VertHandle);
|
||||
glAttachShader(g_ShaderHandle, g_FragHandle);
|
||||
glLinkProgram(g_ShaderHandle);
|
||||
g_ShaderHandle = glCreateProgram();
|
||||
g_VertHandle = glCreateShader(GL_VERTEX_SHADER);
|
||||
g_FragHandle = glCreateShader(GL_FRAGMENT_SHADER);
|
||||
glShaderSource(g_VertHandle, 1, &vertex_shader, 0);
|
||||
glShaderSource(g_FragHandle, 1, &fragment_shader, 0);
|
||||
glCompileShader(g_VertHandle);
|
||||
glCompileShader(g_FragHandle);
|
||||
glAttachShader(g_ShaderHandle, g_VertHandle);
|
||||
glAttachShader(g_ShaderHandle, g_FragHandle);
|
||||
glLinkProgram(g_ShaderHandle);
|
||||
|
||||
g_AttribLocationTex = glGetUniformLocation(g_ShaderHandle, "Texture");
|
||||
g_AttribLocationProjMtx = glGetUniformLocation(g_ShaderHandle, "ProjMtx");
|
||||
g_AttribLocationPosition = glGetAttribLocation(g_ShaderHandle, "Position");
|
||||
g_AttribLocationUV = glGetAttribLocation(g_ShaderHandle, "UV");
|
||||
g_AttribLocationColor = glGetAttribLocation(g_ShaderHandle, "Color");
|
||||
g_AttribLocationTex = glGetUniformLocation(g_ShaderHandle, "Texture");
|
||||
g_AttribLocationProjMtx = glGetUniformLocation(g_ShaderHandle, "ProjMtx");
|
||||
g_AttribLocationPosition = glGetAttribLocation(g_ShaderHandle, "Position");
|
||||
g_AttribLocationUV = glGetAttribLocation(g_ShaderHandle, "UV");
|
||||
g_AttribLocationColor = glGetAttribLocation(g_ShaderHandle, "Color");
|
||||
|
||||
glGenBuffers(1, &g_VboHandle);
|
||||
glGenBuffers(1, &g_ElementsHandle);
|
||||
glGenBuffers(1, &g_VboHandle);
|
||||
glGenBuffers(1, &g_ElementsHandle);
|
||||
|
||||
glGenVertexArrays(1, &g_VaoHandle);
|
||||
glBindVertexArray(g_VaoHandle);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, g_VboHandle);
|
||||
glEnableVertexAttribArray(g_AttribLocationPosition);
|
||||
glEnableVertexAttribArray(g_AttribLocationUV);
|
||||
glEnableVertexAttribArray(g_AttribLocationColor);
|
||||
glGenVertexArrays(1, &g_VaoHandle);
|
||||
glBindVertexArray(g_VaoHandle);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, g_VboHandle);
|
||||
glEnableVertexAttribArray(g_AttribLocationPosition);
|
||||
glEnableVertexAttribArray(g_AttribLocationUV);
|
||||
glEnableVertexAttribArray(g_AttribLocationColor);
|
||||
|
||||
#define OFFSETOF(TYPE, ELEMENT) ((size_t)&(((TYPE *)0)->ELEMENT))
|
||||
glVertexAttribPointer(g_AttribLocationPosition, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (GLvoid*)OFFSETOF(ImDrawVert, pos));
|
||||
glVertexAttribPointer(g_AttribLocationUV, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (GLvoid*)OFFSETOF(ImDrawVert, uv));
|
||||
glVertexAttribPointer(g_AttribLocationColor, 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(ImDrawVert), (GLvoid*)OFFSETOF(ImDrawVert, col));
|
||||
glVertexAttribPointer(g_AttribLocationPosition, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (GLvoid*)OFFSETOF(ImDrawVert, pos));
|
||||
glVertexAttribPointer(g_AttribLocationUV, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert), (GLvoid*)OFFSETOF(ImDrawVert, uv));
|
||||
glVertexAttribPointer(g_AttribLocationColor, 4, GL_UNSIGNED_BYTE, GL_TRUE, sizeof(ImDrawVert), (GLvoid*)OFFSETOF(ImDrawVert, col));
|
||||
#undef OFFSETOF
|
||||
|
||||
ImGui_ImplSdlGL3_CreateFontsTexture();
|
||||
ImGui_ImplSdlGL3_CreateFontsTexture();
|
||||
|
||||
// Restore modified GL state
|
||||
glBindTexture(GL_TEXTURE_2D, last_texture);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);
|
||||
glBindVertexArray(last_vertex_array);
|
||||
// Restore modified GL state
|
||||
glBindTexture(GL_TEXTURE_2D, last_texture);
|
||||
glBindBuffer(GL_ARRAY_BUFFER, last_array_buffer);
|
||||
glBindVertexArray(last_vertex_array);
|
||||
|
||||
return true;
|
||||
return true;
|
||||
}
|
||||
|
||||
void ImGui_ImplSdlGL3_InvalidateDeviceObjects()
|
||||
@@ -294,88 +294,88 @@ void ImGui_ImplSdlGL3_InvalidateDeviceObjects()
|
||||
|
||||
bool ImGui_ImplSdlGL3_Init(SDL_Window *window)
|
||||
{
|
||||
g_Window = window;
|
||||
|
||||
ImGuiIO& io = ImGui::GetIO();
|
||||
io.KeyMap[ImGuiKey_Tab] = SDLK_TAB; // Keyboard mapping. ImGui will use those indices to peek into the io.KeyDown[] array.
|
||||
io.KeyMap[ImGuiKey_LeftArrow] = SDL_SCANCODE_LEFT;
|
||||
io.KeyMap[ImGuiKey_RightArrow] = SDL_SCANCODE_RIGHT;
|
||||
io.KeyMap[ImGuiKey_UpArrow] = SDL_SCANCODE_UP;
|
||||
io.KeyMap[ImGuiKey_DownArrow] = SDL_SCANCODE_DOWN;
|
||||
io.KeyMap[ImGuiKey_PageUp] = SDL_SCANCODE_PAGEUP;
|
||||
io.KeyMap[ImGuiKey_PageDown] = SDL_SCANCODE_PAGEDOWN;
|
||||
io.KeyMap[ImGuiKey_Home] = SDL_SCANCODE_HOME;
|
||||
io.KeyMap[ImGuiKey_End] = SDL_SCANCODE_END;
|
||||
io.KeyMap[ImGuiKey_Delete] = SDLK_DELETE;
|
||||
io.KeyMap[ImGuiKey_Backspace] = SDLK_BACKSPACE;
|
||||
io.KeyMap[ImGuiKey_Enter] = SDLK_RETURN;
|
||||
io.KeyMap[ImGuiKey_Escape] = SDLK_ESCAPE;
|
||||
io.KeyMap[ImGuiKey_A] = SDLK_a;
|
||||
io.KeyMap[ImGuiKey_C] = SDLK_c;
|
||||
io.KeyMap[ImGuiKey_V] = SDLK_v;
|
||||
io.KeyMap[ImGuiKey_X] = SDLK_x;
|
||||
io.KeyMap[ImGuiKey_Y] = SDLK_y;
|
||||
io.KeyMap[ImGuiKey_Z] = SDLK_z;
|
||||
g_Window = window;
|
||||
|
||||
ImGuiIO& io = ImGui::GetIO();
|
||||
io.KeyMap[ImGuiKey_Tab] = SDLK_TAB; // Keyboard mapping. ImGui will use those indices to peek into the io.KeyDown[] array.
|
||||
io.KeyMap[ImGuiKey_LeftArrow] = SDL_SCANCODE_LEFT;
|
||||
io.KeyMap[ImGuiKey_RightArrow] = SDL_SCANCODE_RIGHT;
|
||||
io.KeyMap[ImGuiKey_UpArrow] = SDL_SCANCODE_UP;
|
||||
io.KeyMap[ImGuiKey_DownArrow] = SDL_SCANCODE_DOWN;
|
||||
io.KeyMap[ImGuiKey_PageUp] = SDL_SCANCODE_PAGEUP;
|
||||
io.KeyMap[ImGuiKey_PageDown] = SDL_SCANCODE_PAGEDOWN;
|
||||
io.KeyMap[ImGuiKey_Home] = SDL_SCANCODE_HOME;
|
||||
io.KeyMap[ImGuiKey_End] = SDL_SCANCODE_END;
|
||||
io.KeyMap[ImGuiKey_Delete] = SDLK_DELETE;
|
||||
io.KeyMap[ImGuiKey_Backspace] = SDLK_BACKSPACE;
|
||||
io.KeyMap[ImGuiKey_Enter] = SDLK_RETURN;
|
||||
io.KeyMap[ImGuiKey_Escape] = SDLK_ESCAPE;
|
||||
io.KeyMap[ImGuiKey_A] = SDLK_a;
|
||||
io.KeyMap[ImGuiKey_C] = SDLK_c;
|
||||
io.KeyMap[ImGuiKey_V] = SDLK_v;
|
||||
io.KeyMap[ImGuiKey_X] = SDLK_x;
|
||||
io.KeyMap[ImGuiKey_Y] = SDLK_y;
|
||||
io.KeyMap[ImGuiKey_Z] = SDLK_z;
|
||||
|
||||
io.RenderDrawListsFn = ImGui_ImplSdlGL3_RenderDrawLists; // Alternatively you can set this to NULL and call ImGui::GetDrawData() after ImGui::Render() to get the same ImDrawData pointer.
|
||||
io.SetClipboardTextFn = ImGui_ImplSdlGL3_SetClipboardText;
|
||||
io.GetClipboardTextFn = ImGui_ImplSdlGL3_GetClipboardText;
|
||||
io.RenderDrawListsFn = ImGui_ImplSdlGL3_RenderDrawLists; // Alternatively you can set this to NULL and call ImGui::GetDrawData() after ImGui::Render() to get the same ImDrawData pointer.
|
||||
io.SetClipboardTextFn = ImGui_ImplSdlGL3_SetClipboardText;
|
||||
io.GetClipboardTextFn = ImGui_ImplSdlGL3_GetClipboardText;
|
||||
|
||||
#ifdef _WIN32
|
||||
SDL_SysWMinfo wmInfo;
|
||||
SDL_VERSION(&wmInfo.version);
|
||||
SDL_GetWindowWMInfo(window, &wmInfo);
|
||||
io.ImeWindowHandle = wmInfo.info.win.window;
|
||||
SDL_SysWMinfo wmInfo;
|
||||
SDL_VERSION(&wmInfo.version);
|
||||
SDL_GetWindowWMInfo(window, &wmInfo);
|
||||
io.ImeWindowHandle = wmInfo.info.win.window;
|
||||
#endif
|
||||
|
||||
return true;
|
||||
return true;
|
||||
}
|
||||
|
||||
void ImGui_ImplSdlGL3_Shutdown()
|
||||
{
|
||||
ImGui_ImplSdlGL3_InvalidateDeviceObjects();
|
||||
ImGui::Shutdown();
|
||||
ImGui::Shutdown();
|
||||
}
|
||||
|
||||
void ImGui_ImplSdlGL3_NewFrame()
|
||||
{
|
||||
if (!g_FontTexture)
|
||||
ImGui_ImplSdlGL3_CreateDeviceObjects();
|
||||
if (!g_FontTexture)
|
||||
ImGui_ImplSdlGL3_CreateDeviceObjects();
|
||||
|
||||
ImGuiIO& io = ImGui::GetIO();
|
||||
ImGuiIO& io = ImGui::GetIO();
|
||||
|
||||
// Setup display size (every frame to accommodate for window resizing)
|
||||
int w, h;
|
||||
SDL_GetWindowSize(g_Window, &w, &h);
|
||||
io.DisplaySize = ImVec2((float)w, (float)h);
|
||||
io.DisplayFramebufferScale = ImVec2(1.0f, 1.0f);
|
||||
// Setup display size (every frame to accommodate for window resizing)
|
||||
int w, h;
|
||||
SDL_GetWindowSize(g_Window, &w, &h);
|
||||
io.DisplaySize = ImVec2((float)w, (float)h);
|
||||
io.DisplayFramebufferScale = ImVec2(1.0f, 1.0f);
|
||||
|
||||
// Setup time step
|
||||
Uint32 time = SDL_GetTicks();
|
||||
double current_time = time / 1000.0;
|
||||
io.DeltaTime = g_Time > 0.0 ? (float)(current_time - g_Time) : (float)(1.0f / 60.0f);
|
||||
g_Time = current_time;
|
||||
// Setup time step
|
||||
Uint32 time = SDL_GetTicks();
|
||||
double current_time = time / 1000.0;
|
||||
io.DeltaTime = g_Time > 0.0 ? (float)(current_time - g_Time) : (float)(1.0f / 60.0f);
|
||||
g_Time = current_time;
|
||||
|
||||
// Setup inputs
|
||||
// (we already got mouse wheel, keyboard keys & characters from SDL_PollEvent())
|
||||
int mx, my;
|
||||
Uint32 mouseMask = SDL_GetMouseState(&mx, &my);
|
||||
if (SDL_GetWindowFlags(g_Window) & SDL_WINDOW_MOUSE_FOCUS)
|
||||
io.MousePos = ImVec2((float)mx, (float)my); // Mouse position, in pixels (set to -1,-1 if no mouse / on another screen, etc.)
|
||||
else
|
||||
io.MousePos = ImVec2(-1, -1);
|
||||
// Setup inputs
|
||||
// (we already got mouse wheel, keyboard keys & characters from SDL_PollEvent())
|
||||
int mx, my;
|
||||
Uint32 mouseMask = SDL_GetMouseState(&mx, &my);
|
||||
if (SDL_GetWindowFlags(g_Window) & SDL_WINDOW_MOUSE_FOCUS)
|
||||
io.MousePos = ImVec2((float)mx, (float)my); // Mouse position, in pixels (set to -1,-1 if no mouse / on another screen, etc.)
|
||||
else
|
||||
io.MousePos = ImVec2(-1, -1);
|
||||
|
||||
io.MouseDown[0] = g_MousePressed[0] || (mouseMask & SDL_BUTTON(SDL_BUTTON_LEFT)) != 0; // If a mouse press event came, always pass it as "mouse held this frame", so we don't miss click-release events that are shorter than 1 frame.
|
||||
io.MouseDown[1] = g_MousePressed[1] || (mouseMask & SDL_BUTTON(SDL_BUTTON_RIGHT)) != 0;
|
||||
io.MouseDown[2] = g_MousePressed[2] || (mouseMask & SDL_BUTTON(SDL_BUTTON_MIDDLE)) != 0;
|
||||
g_MousePressed[0] = g_MousePressed[1] = g_MousePressed[2] = false;
|
||||
io.MouseDown[0] = g_MousePressed[0] || (mouseMask & SDL_BUTTON(SDL_BUTTON_LEFT)) != 0; // If a mouse press event came, always pass it as "mouse held this frame", so we don't miss click-release events that are shorter than 1 frame.
|
||||
io.MouseDown[1] = g_MousePressed[1] || (mouseMask & SDL_BUTTON(SDL_BUTTON_RIGHT)) != 0;
|
||||
io.MouseDown[2] = g_MousePressed[2] || (mouseMask & SDL_BUTTON(SDL_BUTTON_MIDDLE)) != 0;
|
||||
g_MousePressed[0] = g_MousePressed[1] = g_MousePressed[2] = false;
|
||||
|
||||
io.MouseWheel = g_MouseWheel;
|
||||
g_MouseWheel = 0.0f;
|
||||
io.MouseWheel = g_MouseWheel;
|
||||
g_MouseWheel = 0.0f;
|
||||
|
||||
// Hide OS mouse cursor if ImGui is drawing it
|
||||
SDL_ShowCursor(io.MouseDrawCursor ? 0 : 1);
|
||||
// Hide OS mouse cursor if ImGui is drawing it
|
||||
SDL_ShowCursor(io.MouseDrawCursor ? 0 : 1);
|
||||
|
||||
// Start the frame
|
||||
ImGui::NewFrame();
|
||||
// Start the frame
|
||||
ImGui::NewFrame();
|
||||
}
|
||||
|
||||
@@ -10,24 +10,24 @@
|
||||
int main(int, char**)
|
||||
{
|
||||
// Setup SDL
|
||||
if (SDL_Init(SDL_INIT_EVERYTHING) != 0)
|
||||
{
|
||||
if (SDL_Init(SDL_INIT_EVERYTHING) != 0)
|
||||
{
|
||||
printf("Error: %s\n", SDL_GetError());
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
// Setup window
|
||||
SDL_GL_SetAttribute(SDL_GL_CONTEXT_FLAGS, SDL_GL_CONTEXT_FORWARD_COMPATIBLE_FLAG);
|
||||
SDL_GL_SetAttribute(SDL_GL_CONTEXT_PROFILE_MASK, SDL_GL_CONTEXT_PROFILE_CORE);
|
||||
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
|
||||
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
|
||||
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
|
||||
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
|
||||
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
|
||||
SDL_DisplayMode current;
|
||||
SDL_GetCurrentDisplayMode(0, ¤t);
|
||||
SDL_Window *window = SDL_CreateWindow("ImGui SDL2+OpenGL3 example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, SDL_WINDOW_OPENGL|SDL_WINDOW_RESIZABLE);
|
||||
SDL_GLContext glcontext = SDL_GL_CreateContext(window);
|
||||
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
|
||||
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
|
||||
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 3);
|
||||
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
|
||||
SDL_DisplayMode current;
|
||||
SDL_GetCurrentDisplayMode(0, ¤t);
|
||||
SDL_Window *window = SDL_CreateWindow("ImGui SDL2+OpenGL3 example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, SDL_WINDOW_OPENGL|SDL_WINDOW_RESIZABLE);
|
||||
SDL_GLContext glcontext = SDL_GL_CreateContext(window);
|
||||
gl3wInit();
|
||||
|
||||
// Setup ImGui binding
|
||||
@@ -48,7 +48,7 @@ int main(int, char**)
|
||||
ImVec4 clear_color = ImColor(114, 144, 154);
|
||||
|
||||
// Main loop
|
||||
bool done = false;
|
||||
bool done = false;
|
||||
while (!done)
|
||||
{
|
||||
SDL_Event event;
|
||||
@@ -99,8 +99,8 @@ int main(int, char**)
|
||||
// Cleanup
|
||||
ImGui_ImplSdlGL3_Shutdown();
|
||||
SDL_GL_DeleteContext(glcontext);
|
||||
SDL_DestroyWindow(window);
|
||||
SDL_Quit();
|
||||
SDL_DestroyWindow(window);
|
||||
SDL_Quit();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
@@ -97,7 +97,7 @@ void ImGui_ImplSdl_RenderDrawLists(ImDrawData* draw_data)
|
||||
|
||||
static const char* ImGui_ImplSdl_GetClipboardText()
|
||||
{
|
||||
return SDL_GetClipboardText();
|
||||
return SDL_GetClipboardText();
|
||||
}
|
||||
|
||||
static void ImGui_ImplSdl_SetClipboardText(const char* text)
|
||||
@@ -203,15 +203,15 @@ bool ImGui_ImplSdl_Init(SDL_Window *window)
|
||||
io.KeyMap[ImGuiKey_X] = SDLK_x;
|
||||
io.KeyMap[ImGuiKey_Y] = SDLK_y;
|
||||
io.KeyMap[ImGuiKey_Z] = SDLK_z;
|
||||
|
||||
|
||||
io.RenderDrawListsFn = ImGui_ImplSdl_RenderDrawLists; // Alternatively you can set this to NULL and call ImGui::GetDrawData() after ImGui::Render() to get the same ImDrawData pointer.
|
||||
io.SetClipboardTextFn = ImGui_ImplSdl_SetClipboardText;
|
||||
io.GetClipboardTextFn = ImGui_ImplSdl_GetClipboardText;
|
||||
|
||||
|
||||
#ifdef _WIN32
|
||||
SDL_SysWMinfo wmInfo;
|
||||
SDL_VERSION(&wmInfo.version);
|
||||
SDL_GetWindowWMInfo(window, &wmInfo);
|
||||
SDL_SysWMinfo wmInfo;
|
||||
SDL_VERSION(&wmInfo.version);
|
||||
SDL_GetWindowWMInfo(window, &wmInfo);
|
||||
io.ImeWindowHandle = wmInfo.info.win.window;
|
||||
#endif
|
||||
|
||||
@@ -233,12 +233,12 @@ void ImGui_ImplSdl_NewFrame(SDL_Window *window)
|
||||
|
||||
// Setup display size (every frame to accommodate for window resizing)
|
||||
int w, h;
|
||||
SDL_GetWindowSize(window, &w, &h);
|
||||
SDL_GetWindowSize(window, &w, &h);
|
||||
io.DisplaySize = ImVec2((float)w, (float)h);
|
||||
|
||||
// Setup time step
|
||||
Uint32 time = SDL_GetTicks();
|
||||
double current_time = time / 1000.0;
|
||||
Uint32 time = SDL_GetTicks();
|
||||
double current_time = time / 1000.0;
|
||||
io.DeltaTime = g_Time > 0.0 ? (float)(current_time - g_Time) : (float)(1.0f/60.0f);
|
||||
g_Time = current_time;
|
||||
|
||||
@@ -247,13 +247,13 @@ void ImGui_ImplSdl_NewFrame(SDL_Window *window)
|
||||
int mx, my;
|
||||
Uint32 mouseMask = SDL_GetMouseState(&mx, &my);
|
||||
if (SDL_GetWindowFlags(window) & SDL_WINDOW_MOUSE_FOCUS)
|
||||
io.MousePos = ImVec2((float)mx, (float)my); // Mouse position, in pixels (set to -1,-1 if no mouse / on another screen, etc.)
|
||||
io.MousePos = ImVec2((float)mx, (float)my); // Mouse position, in pixels (set to -1,-1 if no mouse / on another screen, etc.)
|
||||
else
|
||||
io.MousePos = ImVec2(-1,-1);
|
||||
io.MousePos = ImVec2(-1,-1);
|
||||
|
||||
io.MouseDown[0] = g_MousePressed[0] || (mouseMask & SDL_BUTTON(SDL_BUTTON_LEFT)) != 0; // If a mouse press event came, always pass it as "mouse held this frame", so we don't miss click-release events that are shorter than 1 frame.
|
||||
io.MouseDown[1] = g_MousePressed[1] || (mouseMask & SDL_BUTTON(SDL_BUTTON_RIGHT)) != 0;
|
||||
io.MouseDown[2] = g_MousePressed[2] || (mouseMask & SDL_BUTTON(SDL_BUTTON_MIDDLE)) != 0;
|
||||
io.MouseDown[0] = g_MousePressed[0] || (mouseMask & SDL_BUTTON(SDL_BUTTON_LEFT)) != 0; // If a mouse press event came, always pass it as "mouse held this frame", so we don't miss click-release events that are shorter than 1 frame.
|
||||
io.MouseDown[1] = g_MousePressed[1] || (mouseMask & SDL_BUTTON(SDL_BUTTON_RIGHT)) != 0;
|
||||
io.MouseDown[2] = g_MousePressed[2] || (mouseMask & SDL_BUTTON(SDL_BUTTON_MIDDLE)) != 0;
|
||||
g_MousePressed[0] = g_MousePressed[1] = g_MousePressed[2] = false;
|
||||
|
||||
io.MouseWheel = g_MouseWheel;
|
||||
|
||||
@@ -10,22 +10,22 @@
|
||||
int main(int, char**)
|
||||
{
|
||||
// Setup SDL
|
||||
if (SDL_Init(SDL_INIT_EVERYTHING) != 0)
|
||||
{
|
||||
if (SDL_Init(SDL_INIT_EVERYTHING) != 0)
|
||||
{
|
||||
printf("Error: %s\n", SDL_GetError());
|
||||
return -1;
|
||||
}
|
||||
}
|
||||
|
||||
// Setup window
|
||||
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
|
||||
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
|
||||
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
|
||||
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
|
||||
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
|
||||
SDL_DisplayMode current;
|
||||
SDL_GetCurrentDisplayMode(0, ¤t);
|
||||
SDL_Window *window = SDL_CreateWindow("ImGui SDL2+OpenGL example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, SDL_WINDOW_OPENGL|SDL_WINDOW_RESIZABLE);
|
||||
SDL_GLContext glcontext = SDL_GL_CreateContext(window);
|
||||
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
|
||||
SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
|
||||
SDL_GL_SetAttribute(SDL_GL_STENCIL_SIZE, 8);
|
||||
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MAJOR_VERSION, 2);
|
||||
SDL_GL_SetAttribute(SDL_GL_CONTEXT_MINOR_VERSION, 2);
|
||||
SDL_DisplayMode current;
|
||||
SDL_GetCurrentDisplayMode(0, ¤t);
|
||||
SDL_Window *window = SDL_CreateWindow("ImGui SDL2+OpenGL example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, 1280, 720, SDL_WINDOW_OPENGL|SDL_WINDOW_RESIZABLE);
|
||||
SDL_GLContext glcontext = SDL_GL_CreateContext(window);
|
||||
|
||||
// Setup ImGui binding
|
||||
ImGui_ImplSdl_Init(window);
|
||||
@@ -45,7 +45,7 @@ int main(int, char**)
|
||||
ImVec4 clear_color = ImColor(114, 144, 154);
|
||||
|
||||
// Main loop
|
||||
bool done = false;
|
||||
bool done = false;
|
||||
while (!done)
|
||||
{
|
||||
SDL_Event event;
|
||||
@@ -96,8 +96,8 @@ int main(int, char**)
|
||||
// Cleanup
|
||||
ImGui_ImplSdl_Shutdown();
|
||||
SDL_GL_DeleteContext(glcontext);
|
||||
SDL_DestroyWindow(window);
|
||||
SDL_Quit();
|
||||
SDL_DestroyWindow(window);
|
||||
SDL_Quit();
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user