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Moving imgui to the new ImmediateDrawer.

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This commit is contained in:
Ben Vanik
2015-11-05 23:03:02 -08:00
parent c631b965d7
commit 4c2257a29d
10 changed files with 198 additions and 564 deletions
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272
src/xenia/gpu/gl4/trace_viewer_main.cc
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@@ -11,7 +11,6 @@
#include <cstring>
#include "third_party/imgui/imgui.h"
#include "xenia/base/clock.h"
#include "xenia/base/logging.h"
#include "xenia/base/main.h"
@@ -25,6 +24,7 @@
#include "xenia/gpu/xenos.h"
#include "xenia/profiling.h"
#include "xenia/ui/gl/gl_context.h"
#include "xenia/ui/imgui_drawer.h"
#include "xenia/ui/window.h"
// HACK: until we have another impl, we just use gl4 directly.
@@ -2182,8 +2182,7 @@ void DrawUI(xe::ui::Window* window, TracePlayer& player, Memory* memory) {
DrawPacketDisassemblerUI(window, player, memory);
}
void ImImpl_Setup();
void ImImpl_Shutdown();
std::unique_ptr<xe::ui::ImGuiDrawer> imgui_drawer_;
int trace_viewer_main(const std::vector<std::wstring>& args) {
// Create the emulator but don't initialize so we can setup the window.
@@ -2202,6 +2201,7 @@ int trace_viewer_main(const std::vector<std::wstring>& args) {
window->on_closed.AddListener([&loop](xe::ui::UIEvent* e) {
loop->Quit();
XELOGI("User-initiated death!");
imgui_drawer_.reset();
exit(1);
});
loop->on_quit.AddListener([&window](xe::ui::UIEvent* e) { window.reset(); });
@@ -2236,9 +2236,10 @@ int trace_viewer_main(const std::vector<std::wstring>& args) {
window->set_title(std::wstring(L"Xenia GPU Trace Viewer: ") + file_name);
auto graphics_system = emulator->graphics_system();
Profiler::set_window(nullptr);
TracePlayer player(loop.get(), emulator->graphics_system());
imgui_drawer_ = std::make_unique<xe::ui::ImGuiDrawer>(window.get());
TracePlayer player(loop.get(), graphics_system);
if (!player.Open(abs_path)) {
XELOGE("Could not load trace file");
return 1;
@@ -2290,11 +2291,6 @@ int trace_viewer_main(const std::vector<std::wstring>& args) {
});
window->on_painting.AddListener([&](xe::ui::UIEvent* e) {
static bool imgui_setup = false;
if (!imgui_setup) {
ImImpl_Setup();
imgui_setup = true;
}
auto& io = ImGui::GetIO();
auto current_ticks = Clock::QueryHostTickCount();
static uint64_t last_ticks = 0;
@@ -2326,7 +2322,7 @@ int trace_viewer_main(const std::vector<std::wstring>& args) {
// Wait until we are exited.
loop->AwaitQuit();
ImImpl_Shutdown();
imgui_drawer_.reset();
emulator.reset();
window.reset();
@@ -2334,260 +2330,6 @@ int trace_viewer_main(const std::vector<std::wstring>& args) {
return 0;
}
// TODO(benvanik): move to another file.
static int shader_handle, vert_handle, frag_handle;
static int texture_location, proj_mtx_location;
static int position_location, uv_location, colour_location;
static size_t vbo_max_size = 20000;
static unsigned int vbo_handle, vao_handle;
void ImImpl_RenderDrawLists(ImDrawData* data);
void ImImpl_Setup() {
ImGuiIO& io = ImGui::GetIO();
const GLchar* vertex_shader =
"#version 330\n"
"uniform mat4 ProjMtx;\n"
"in vec2 Position;\n"
"in vec2 UV;\n"
"in vec4 Color;\n"
"out vec2 Frag_UV;\n"
"out vec4 Frag_Color;\n"
"void main()\n"
"{\n"
" Frag_UV = UV;\n"
" Frag_Color = Color;\n"
" gl_Position = ProjMtx * vec4(Position.xy,0,1);\n"
"}\n";
const GLchar* fragment_shader =
"#version 330\n"
"uniform sampler2D Texture;\n"
"in vec2 Frag_UV;\n"
"in vec4 Frag_Color;\n"
"out vec4 Out_Color;\n"
"void main()\n"
"{\n"
" Out_Color = Frag_Color * texture( Texture, Frag_UV.st);\n"
"}\n";
shader_handle = glCreateProgram();
vert_handle = glCreateShader(GL_VERTEX_SHADER);
frag_handle = glCreateShader(GL_FRAGMENT_SHADER);
glShaderSource(vert_handle, 1, &vertex_shader, 0);
glShaderSource(frag_handle, 1, &fragment_shader, 0);
glCompileShader(vert_handle);
glCompileShader(frag_handle);
glAttachShader(shader_handle, vert_handle);
glAttachShader(shader_handle, frag_handle);
glLinkProgram(shader_handle);
texture_location = glGetUniformLocation(shader_handle, "Texture");
proj_mtx_location = glGetUniformLocation(shader_handle, "ProjMtx");
position_location = glGetAttribLocation(shader_handle, "Position");
uv_location = glGetAttribLocation(shader_handle, "UV");
colour_location = glGetAttribLocation(shader_handle, "Color");
glGenBuffers(1, &vbo_handle);
glBindBuffer(GL_ARRAY_BUFFER, vbo_handle);
glBufferData(GL_ARRAY_BUFFER, vbo_max_size, NULL, GL_DYNAMIC_DRAW);
glGenVertexArrays(1, &vao_handle);
glBindVertexArray(vao_handle);
glBindBuffer(GL_ARRAY_BUFFER, vbo_handle);
glEnableVertexAttribArray(position_location);
glEnableVertexAttribArray(uv_location);
glEnableVertexAttribArray(colour_location);
glVertexAttribPointer(position_location, 2, GL_FLOAT, GL_FALSE,
sizeof(ImDrawVert), (GLvoid*)offsetof(ImDrawVert, pos));
glVertexAttribPointer(uv_location, 2, GL_FLOAT, GL_FALSE, sizeof(ImDrawVert),
(GLvoid*)offsetof(ImDrawVert, uv));
glVertexAttribPointer(colour_location, 4, GL_UNSIGNED_BYTE, GL_TRUE,
sizeof(ImDrawVert), (GLvoid*)offsetof(ImDrawVert, col));
glBindVertexArray(0);
glDisableVertexAttribArray(position_location);
glDisableVertexAttribArray(uv_location);
glDisableVertexAttribArray(colour_location);
glBindBuffer(GL_ARRAY_BUFFER, 0);
unsigned char* pixels;
int width, height;
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.
GLuint tex_id;
glCreateTextures(GL_TEXTURE_2D, 1, &tex_id);
glTextureParameteri(tex_id, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTextureParameteri(tex_id, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
glTextureStorage2D(tex_id, 1, GL_RGBA8, width, height);
glTextureSubImage2D(tex_id, 0, 0, 0, width, height, GL_RGBA, GL_UNSIGNED_BYTE,
pixels);
// Store our identifier
io.Fonts->TexID = (void*)(intptr_t)tex_id;
io.DeltaTime = 1.0f / 60.0f;
io.RenderDrawListsFn = ImImpl_RenderDrawLists;
auto& style = ImGui::GetStyle();
style.WindowRounding = 0;
style.Colors[ImGuiCol_Text] = ImVec4(0.89f, 0.90f, 0.90f, 1.00f);
style.Colors[ImGuiCol_WindowBg] = ImVec4(0.00f, 0.00f, 0.00f, 1.00f);
style.Colors[ImGuiCol_ChildWindowBg] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
style.Colors[ImGuiCol_Border] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
style.Colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.60f);
style.Colors[ImGuiCol_FrameBg] = ImVec4(0.80f, 0.80f, 0.80f, 0.22f);
style.Colors[ImGuiCol_TitleBg] = ImVec4(0.00f, 1.00f, 0.00f, 0.78f);
style.Colors[ImGuiCol_TitleBgCollapsed] = ImVec4(0.00f, 0.58f, 0.00f, 0.61f);
style.Colors[ImGuiCol_ScrollbarBg] = ImVec4(0.00f, 0.40f, 0.11f, 0.59f);
style.Colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.00f, 0.68f, 0.00f, 0.68f);
style.Colors[ImGuiCol_ScrollbarGrabHovered] =
ImVec4(0.00f, 1.00f, 0.15f, 0.62f);
style.Colors[ImGuiCol_ScrollbarGrabActive] =
ImVec4(0.00f, 0.91f, 0.09f, 0.40f);
style.Colors[ImGuiCol_ComboBg] = ImVec4(0.20f, 0.20f, 0.20f, 0.99f);
style.Colors[ImGuiCol_CheckMark] = ImVec4(0.74f, 0.90f, 0.72f, 0.50f);
style.Colors[ImGuiCol_SliderGrab] = ImVec4(1.00f, 1.00f, 1.00f, 0.30f);
style.Colors[ImGuiCol_SliderGrabActive] = ImVec4(0.34f, 0.75f, 0.11f, 1.00f);
style.Colors[ImGuiCol_Button] = ImVec4(0.15f, 0.56f, 0.11f, 0.60f);
style.Colors[ImGuiCol_ButtonHovered] = ImVec4(0.19f, 0.72f, 0.09f, 1.00f);
style.Colors[ImGuiCol_ButtonActive] = ImVec4(0.19f, 0.60f, 0.09f, 1.00f);
style.Colors[ImGuiCol_Header] = ImVec4(0.00f, 0.40f, 0.00f, 0.71f);
style.Colors[ImGuiCol_HeaderHovered] = ImVec4(0.00f, 0.60f, 0.26f, 0.80f);
style.Colors[ImGuiCol_HeaderActive] = ImVec4(0.00f, 0.75f, 0.00f, 0.80f);
style.Colors[ImGuiCol_Column] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
style.Colors[ImGuiCol_ColumnHovered] = ImVec4(0.36f, 0.89f, 0.38f, 1.00f);
style.Colors[ImGuiCol_ColumnActive] = ImVec4(0.13f, 0.50f, 0.11f, 1.00f);
style.Colors[ImGuiCol_ResizeGrip] = ImVec4(1.00f, 1.00f, 1.00f, 0.30f);
style.Colors[ImGuiCol_ResizeGripHovered] = ImVec4(1.00f, 1.00f, 1.00f, 0.60f);
style.Colors[ImGuiCol_ResizeGripActive] = ImVec4(1.00f, 1.00f, 1.00f, 0.90f);
style.Colors[ImGuiCol_CloseButton] = ImVec4(0.00f, 0.72f, 0.00f, 0.96f);
style.Colors[ImGuiCol_CloseButtonHovered] =
ImVec4(0.38f, 1.00f, 0.42f, 0.60f);
style.Colors[ImGuiCol_CloseButtonActive] = ImVec4(0.56f, 1.00f, 0.64f, 1.00f);
style.Colors[ImGuiCol_PlotLines] = ImVec4(1.00f, 1.00f, 1.00f, 1.00f);
style.Colors[ImGuiCol_PlotLinesHovered] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
style.Colors[ImGuiCol_PlotHistogram] = ImVec4(0.90f, 0.70f, 0.00f, 1.00f);
style.Colors[ImGuiCol_PlotHistogramHovered] =
ImVec4(1.00f, 0.60f, 0.00f, 1.00f);
style.Colors[ImGuiCol_TextSelectedBg] = ImVec4(0.00f, 0.00f, 1.00f, 0.35f);
style.Colors[ImGuiCol_TooltipBg] = ImVec4(0.05f, 0.05f, 0.10f, 0.90f);
io.KeyMap[ImGuiKey_Tab] = VK_TAB;
io.KeyMap[ImGuiKey_LeftArrow] = VK_LEFT;
io.KeyMap[ImGuiKey_RightArrow] = VK_RIGHT;
io.KeyMap[ImGuiKey_UpArrow] = VK_UP;
io.KeyMap[ImGuiKey_DownArrow] = VK_DOWN;
io.KeyMap[ImGuiKey_Home] = VK_HOME;
io.KeyMap[ImGuiKey_End] = VK_END;
io.KeyMap[ImGuiKey_Delete] = VK_DELETE;
io.KeyMap[ImGuiKey_Backspace] = VK_BACK;
io.KeyMap[ImGuiKey_Enter] = VK_RETURN;
io.KeyMap[ImGuiKey_Escape] = VK_ESCAPE;
io.KeyMap[ImGuiKey_A] = 'A';
io.KeyMap[ImGuiKey_C] = 'C';
io.KeyMap[ImGuiKey_V] = 'V';
io.KeyMap[ImGuiKey_X] = 'X';
io.KeyMap[ImGuiKey_Y] = 'Y';
io.KeyMap[ImGuiKey_Z] = 'Z';
}
void ImImpl_Shutdown() {
ImGuiIO& io = ImGui::GetIO();
if (vao_handle) glDeleteVertexArrays(1, &vao_handle);
if (vbo_handle) glDeleteBuffers(1, &vbo_handle);
glDetachShader(shader_handle, vert_handle);
glDetachShader(shader_handle, frag_handle);
glDeleteShader(vert_handle);
glDeleteShader(frag_handle);
glDeleteProgram(shader_handle);
auto tex_id = static_cast<GLuint>(intptr_t(io.Fonts->TexID));
glDeleteTextures(1, &tex_id);
ImGui::Shutdown();
}
void ImImpl_RenderDrawLists(ImDrawData* data) {
if (data->CmdListsCount == 0) return;
// Setup render state: alpha-blending enabled, no face culling, no depth
// testing, scissor enabled
glEnable(GL_BLEND);
glBlendEquation(GL_FUNC_ADD);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glDisable(GL_CULL_FACE);
glDisable(GL_DEPTH_TEST);
glEnable(GL_SCISSOR_TEST);
glActiveTexture(GL_TEXTURE0);
// Setup orthographic projection matrix
const float width = ImGui::GetIO().DisplaySize.x;
const float height = ImGui::GetIO().DisplaySize.y;
const float ortho_projection[4][4] = {
{2.0f / width, 0.0f, 0.0f, 0.0f},
{0.0f, 2.0f / -height, 0.0f, 0.0f},
{0.0f, 0.0f, -1.0f, 0.0f},
{-1.0f, 1.0f, 0.0f, 1.0f},
};
glProgramUniform1i(shader_handle, texture_location, 0);
glProgramUniformMatrix4fv(shader_handle, proj_mtx_location, 1, GL_FALSE,
&ortho_projection[0][0]);
// Grow our buffer according to what we need
glBindBuffer(GL_ARRAY_BUFFER, vbo_handle);
size_t neededBufferSize = data->TotalVtxCount * sizeof(ImDrawVert);
if (neededBufferSize > vbo_max_size) {
vbo_max_size = neededBufferSize + 5000; // Grow buffer
glBufferData(GL_ARRAY_BUFFER, vbo_max_size, NULL, GL_STREAM_DRAW);
}
glBindVertexArray(vao_handle);
glUseProgram(shader_handle);
GLuint ib;
glGenBuffers(1, &ib);
ImTextureID prev_texture_id = 0;
for (int n = 0; n < data->CmdListsCount; n++) {
const ImDrawList* cmd_list = data->CmdLists[n];
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ib);
glBufferData(GL_ELEMENT_ARRAY_BUFFER,
(GLsizeiptr)cmd_list->IdxBuffer.size() * sizeof(ImDrawIdx),
(GLvoid*)&cmd_list->IdxBuffer.front(), GL_STREAM_DRAW);
// Copy and convert all vertices into a single contiguous buffer
unsigned char* buffer_data =
(unsigned char*)glMapBuffer(GL_ARRAY_BUFFER, GL_WRITE_ONLY);
memcpy(buffer_data, &cmd_list->VtxBuffer[0],
cmd_list->VtxBuffer.size() * sizeof(ImDrawVert));
glUnmapBuffer(GL_ARRAY_BUFFER);
const ImDrawIdx* idx_buffer_offset = 0;
for (auto cmd = cmd_list->CmdBuffer.begin();
cmd != cmd_list->CmdBuffer.end(); ++cmd) {
if (cmd->TextureId != prev_texture_id) {
glBindTexture(GL_TEXTURE_2D, (GLuint)(intptr_t)cmd->TextureId);
prev_texture_id = cmd->TextureId;
}
glScissor((int)cmd->ClipRect.x, (int)(height - cmd->ClipRect.w),
(int)(cmd->ClipRect.z - cmd->ClipRect.x),
(int)(cmd->ClipRect.w - cmd->ClipRect.y));
glDrawElements(GL_TRIANGLES, (GLsizei)cmd->ElemCount, GL_UNSIGNED_SHORT,
idx_buffer_offset);
idx_buffer_offset += cmd->ElemCount;
}
}
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, 0);
glDeleteBuffers(1, &ib);
glBindBuffer(GL_ARRAY_BUFFER, 0);
// Restore modified state
glBindVertexArray(0);
glUseProgram(0);
glDisable(GL_SCISSOR_TEST);
glBindTexture(GL_TEXTURE_2D, 0);
}
} // namespace gpu
} // namespace xe