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Linux: start getting somewhere with the whole OpenGL shito

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This commit is contained in:
StapleButter
2019-05-28 19:48:59 +02:00
parent 23eccc9439
commit 891ab9fd3c
9 changed files with 490 additions and 50 deletions
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46
src/libui_sdl/main.cpp
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@ -194,9 +194,16 @@ bool GLScreen_InitShader(GLuint* shader, const char* fs)
}
bool GLScreen_Init()
{
{printf("BEGINNING GL SHITO\n");
if (!OpenGL_Init())
return false;
printf("GL INIT: %p, %p\n", glGenFramebuffers, glCreateShader);
const GLubyte* renderer = glGetString(GL_RENDERER); // get renderer string
const GLubyte* version = glGetString(GL_VERSION); // version as a string
printf("OpenGL: renderer: %s\n", renderer);
printf("OpenGL: version: %s\n", version);
if (!GLScreen_InitShader(GL_ScreenShader, kScreenFS))
return false;
@ -204,7 +211,7 @@ bool GLScreen_Init()
return false;
memset(&GL_ShaderConfig, 0, sizeof(GL_ShaderConfig));
printf("morp0\n");
glGenBuffers(1, &GL_ShaderConfigUBO);
glBindBuffer(GL_UNIFORM_BUFFER, GL_ShaderConfigUBO);
glBufferData(GL_UNIFORM_BUFFER, sizeof(GL_ShaderConfig), &GL_ShaderConfig, GL_STATIC_DRAW);
@ -213,14 +220,14 @@ bool GLScreen_Init()
glGenBuffers(1, &GL_ScreenVertexBufferID);
glBindBuffer(GL_ARRAY_BUFFER, GL_ScreenVertexBufferID);
glBufferData(GL_ARRAY_BUFFER, sizeof(GL_ScreenVertices), NULL, GL_STATIC_DRAW);
printf("morp1\n");
glGenVertexArrays(1, &GL_ScreenVertexArrayID);
glBindVertexArray(GL_ScreenVertexArrayID);
glEnableVertexAttribArray(0); // position
glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 4*4, (void*)(0));
glEnableVertexAttribArray(1); // texcoord
glVertexAttribPointer(1, 2, GL_FLOAT, GL_FALSE, 4*4, (void*)(2*4));
printf("morp2\n");
glGenTextures(1, &GL_ScreenTexture);
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, GL_ScreenTexture);
@ -231,7 +238,7 @@ bool GLScreen_Init()
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA8UI, 256*3 + 1, 192*2, 0, GL_RGBA_INTEGER, GL_UNSIGNED_BYTE, NULL);
GL_ScreenSizeDirty = true;
printf("morp3\n");
return true;
}
@ -248,6 +255,8 @@ void GLScreen_DeInit()
void GLScreen_DrawScreen()
{
float scale = uiGLGetFramebufferScale(GLContext);
if (GL_ScreenSizeDirty)
{
GL_ScreenSizeDirty = false;
@ -370,23 +379,26 @@ void GLScreen_DrawScreen()
glBindBuffer(GL_ARRAY_BUFFER, GL_ScreenVertexBufferID);
glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(GL_ScreenVertices), GL_ScreenVertices);
}
printf("rarp4 %04X\n", glGetError());
glDisable(GL_DEPTH_TEST);
glDisable(GL_STENCIL_TEST);
glDisable(GL_BLEND);
glColorMaski(0, GL_TRUE, GL_TRUE, GL_TRUE, GL_TRUE);
printf("rarp2 %04X\n", glGetError());
glViewport(0, 0, WindowWidth, WindowHeight);
glViewport(0, 0, WindowWidth*scale, WindowHeight*scale);
printf("draw screen: viewport=%d/%d\n", WindowWidth, WindowHeight);
if (GPU3D::Renderer == 0)
OpenGL_UseShaderProgram(GL_ScreenShader);
else
OpenGL_UseShaderProgram(GL_ScreenShaderAccel);
glBindFramebuffer(GL_FRAMEBUFFER, 0);
glClearColor(0, 0, 0, 1);
printf("rarp3 %04X\n", glGetError());
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, uiGLGetFramebuffer(GLContext));
printf("rarp8 %04X\n", glGetError());
glClearColor(0, 0, 1, 1);
glClear(GL_COLOR_BUFFER_BIT);
printf("rarp5 %04X\n", glGetError());
int frontbuf = GPU::FrontBuffer;
glActiveTexture(GL_TEXTURE0);
glBindTexture(GL_TEXTURE_2D, GL_ScreenTexture);
@ -412,15 +424,21 @@ void GLScreen_DrawScreen()
glActiveTexture(GL_TEXTURE1);
if (GPU3D::Renderer != 0)
GPU3D::GLRenderer::SetupAccelFrame();
printf("rarp6 %04X\n", glGetError());
glBindBuffer(GL_ARRAY_BUFFER, GL_ScreenVertexBufferID);
glBindVertexArray(GL_ScreenVertexArrayID);
glDrawArrays(GL_TRIANGLES, 0, 4*3);
printf("rarp7 %04X\n", glGetError());
glFlush();
uiGLSwapBuffers(GLContext);
}
void norp(void* data)
{
uiGLMakeContextCurrent(GLContext);
GLScreen_DrawScreen();
}
void MicLoadWav(char* name)
{
SDL_AudioSpec format;
@ -901,6 +919,8 @@ int EmuThreadFunc(void* burp)
{
uiGLMakeContextCurrent(GLContext);
GLScreen_DrawScreen();
//uiGLMakeContextCurrent(NULL);
//uiQueueMain(norp, NULL);
}
uiAreaQueueRedrawAll(MainDrawArea);
}