mirror of
https://github.com/dolphin-emu/dolphin.git
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Initial push of GLES and GLUtil file breakup.
This commit is contained in:
Ryan Houdek
parent
0811311604
commit
b78f5debe6
17 changed files with 582 additions and 810 deletions
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@ -16,17 +16,35 @@
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// http://code.google.com/p/dolphin-emu/
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#include "Common.h"
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#include <math.h>
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#include "../../Plugin_VideoOGL/Src/GLUtil.h"
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#include "../../Plugin_VideoOGL/Src/RasterFont.h"
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#include "SWRenderer.h"
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#include "SWStatistics.h"
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#include "../../Plugin_VideoOGL/Src/RasterFont.h"
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#define VSYNC_ENABLED 0
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static GLuint s_RenderTarget = 0;
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static GLint attr_pos = -1, attr_tex = -1;
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static GLint uni_tex = -1;
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static GLuint program;
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#ifdef USE_GLES
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#define PREC "highp"
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#define TEX2D GL_TEXTURE_2D
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#define TEXTYPE "sampler2D"
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#define TEXFUNC "texture2D"
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#else
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#define PREC
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#define TEX2D GL_TEXTURE_RECTANGLE_ARB
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#define TEXTYPE "sampler2DRect"
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#define TEXFUNC "texture2DRect"
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#endif
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#ifndef USE_GLES
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RasterFont* s_pfont = NULL;
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#endif
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void SWRenderer::Init()
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{
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@ -34,79 +52,68 @@ void SWRenderer::Init()
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void SWRenderer::Shutdown()
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{
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glDeleteProgram(program);
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glDeleteTextures(1, &s_RenderTarget);
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#ifndef USE_GLES
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delete s_pfont;
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s_pfont = 0;
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#endif
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}
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delete s_pfont;
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s_pfont = 0;
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void CreateShaders()
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{
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static const char *fragShaderText =
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"varying " PREC " vec2 TexCoordOut;\n"
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"uniform " TEXTYPE " Texture;\n"
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"void main() {\n"
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" " PREC " vec4 tmpcolor;\n"
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" tmpcolor = " TEXFUNC "(Texture, TexCoordOut);\n"
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" gl_FragColor = tmpcolor;\n"
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"}\n";
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static const char *vertShaderText =
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"attribute vec4 pos;\n"
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"attribute vec2 TexCoordIn;\n "
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"varying vec2 TexCoordOut;\n "
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"void main() {\n"
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" gl_Position = pos;\n"
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" TexCoordOut = TexCoordIn;\n"
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"}\n";
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program = OpenGL_CompileProgram(vertShaderText, fragShaderText);
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glUseProgram(program);
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uni_tex = glGetUniformLocation(program, "Texture");
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attr_pos = glGetAttribLocation(program, "pos");
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attr_tex = glGetAttribLocation(program, "TexCoordIn");
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}
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void SWRenderer::Prepare()
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{
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OpenGL_MakeCurrent();
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// Init extension support.
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if (glewInit() != GLEW_OK) {
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ERROR_LOG(VIDEO, "glewInit() failed!Does your video card support OpenGL 2.x?");
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return;
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}
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// Handle VSync on/off
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#ifdef _WIN32
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if (WGLEW_EXT_swap_control)
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wglSwapIntervalEXT(VSYNC_ENABLED);
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else
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ERROR_LOG(VIDEO, "no support for SwapInterval (framerate clamped to monitor refresh rate)Does your video card support OpenGL 2.x?");
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#elif defined(HAVE_X11) && HAVE_X11
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if (glXSwapIntervalSGI)
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glXSwapIntervalSGI(VSYNC_ENABLED);
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else
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ERROR_LOG(VIDEO, "no support for SwapInterval (framerate clamped to monitor refresh rate)");
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#endif
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glStencilFunc(GL_ALWAYS, 0, 0);
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// used by hw rasterizer if it enables blending and depth test
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glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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glDepthFunc(GL_LEQUAL);
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glShadeModel(GL_SMOOTH);
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glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
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glClearDepth(1.0f);
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glEnable(GL_SCISSOR_TEST);
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glClearColor(0.0f, 0.0f, 0.0f, 0.0f);
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glPixelStorei(GL_UNPACK_ALIGNMENT, 4); // 4-byte pixel alignment
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glDisable(GL_LIGHTING);
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glDisable(GL_BLEND);
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glDisable(GL_STENCIL_TEST);
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//glDisable(GL_SCISSOR_TEST);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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s_pfont = new RasterFont();
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// legacy multitexturing: select texture channel only.
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glActiveTexture(GL_TEXTURE0);
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glClientActiveTexture(GL_TEXTURE0);
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glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
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glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
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glGenTextures(1, &s_RenderTarget);
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CreateShaders();
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#ifndef USE_GLES
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s_pfont = new RasterFont();
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glEnable(GL_TEXTURE_RECTANGLE_ARB);
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#endif
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GL_REPORT_ERRORD();
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}
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void SWRenderer::RenderText(const char* pstr, int left, int top, u32 color)
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{
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int nBackbufferWidth = (int)OpenGL_GetBackbufferWidth();
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int nBackbufferHeight = (int)OpenGL_GetBackbufferHeight();
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int nBackbufferWidth = (int)GLInterface->GetBackBufferWidth();
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int nBackbufferHeight = (int)GLInterface->GetBackBufferHeight();
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#ifndef USE_GLES
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glColor4f(((color>>16) & 0xff)/255.0f, ((color>> 8) & 0xff)/255.0f,
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((color>> 0) & 0xff)/255.0f, ((color>>24) & 0xFF)/255.0f);
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s_pfont->printMultilineText(pstr,
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left * 2.0f / (float)nBackbufferWidth - 1,
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1 - top * 2.0f / (float)nBackbufferHeight,
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0, nBackbufferWidth, nBackbufferHeight);
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s_pfont->printMultilineText(pstr,
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left * 2.0f / (float)nBackbufferWidth - 1,
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1 - top * 2.0f / (float)nBackbufferHeight,
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0, nBackbufferWidth, nBackbufferHeight);
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#endif
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}
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void SWRenderer::DrawDebugText()
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@ -139,31 +146,56 @@ void SWRenderer::DrawDebugText()
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void SWRenderer::DrawTexture(u8 *texture, int width, int height)
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{
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GLsizei glWidth = (GLsizei)OpenGL_GetBackbufferWidth();
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GLsizei glHeight = (GLsizei)OpenGL_GetBackbufferHeight();
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GLsizei glWidth = (GLsizei)GLInterface->GetBackBufferWidth();
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GLsizei glHeight = (GLsizei)GLInterface->GetBackBufferHeight();
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// Update GLViewPort
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glViewport(0, 0, glWidth, glHeight);
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glScissor(0, 0, glWidth, glHeight);
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glBindTexture(GL_TEXTURE_RECTANGLE_ARB, s_RenderTarget);
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glTexImage2D(GL_TEXTURE_RECTANGLE_ARB, 0, GL_RGBA8, (GLsizei)width, (GLsizei)height, 0, GL_RGBA, GL_UNSIGNED_BYTE, texture);
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glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_RECTANGLE_ARB, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glBindTexture(TEX2D, s_RenderTarget);
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GL_REPORT_ERRORD();
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glTexImage2D(TEX2D, 0, GL_RGBA, (GLsizei)width, (GLsizei)height, 0, GL_RGBA, GL_UNSIGNED_BYTE, texture);
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glTexParameteri(TEX2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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glTexParameteri(TEX2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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GLfloat u_max = (GLfloat)width;
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GLfloat v_max = (GLfloat)glHeight;
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glBegin(GL_QUADS);
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glTexCoord2f(0, v_max); glVertex2f(-1, -1);
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glTexCoord2f(0, 0); glVertex2f(-1, 1);
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glTexCoord2f(u_max, 0); glVertex2f( 1, 1);
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glTexCoord2f(u_max, v_max); glVertex2f( 1, -1);
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glEnd();
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static const GLfloat verts[4][2] = {
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{ -1, -1}, // Left top
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{ -1, 1}, // left bottom
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{ 1, 1}, // right bottom
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{ 1, -1} // right top
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};
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//Texture rectangle uses pixel coordinates
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#ifndef USE_GLES
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static const GLfloat texverts[4][2] = {
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{0, v_max},
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{0, 0},
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{u_max, 0},
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{u_max, v_max}
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};
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#else
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static const GLfloat texverts[4][2] = {
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{0, 1},
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{0, 0},
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{1, 0},
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{1, 1}
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};
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#endif
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glVertexAttribPointer(attr_pos, 2, GL_FLOAT, GL_FALSE, 0, verts);
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glVertexAttribPointer(attr_tex, 2, GL_FLOAT, GL_FALSE, 0, texverts);
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glEnableVertexAttribArray(attr_pos);
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glEnableVertexAttribArray(attr_tex);
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glActiveTexture(GL_TEXTURE0);
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glUniform1i(uni_tex, 0);
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glDrawArrays(GL_TRIANGLE_FAN, 0, 4);
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glDisableVertexAttribArray(attr_pos);
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glDisableVertexAttribArray(attr_tex);
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glBindTexture(GL_TEXTURE_RECTANGLE_ARB, 0);
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glBindTexture(TEX2D, 0);
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GL_REPORT_ERRORD();
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}
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void SWRenderer::SwapBuffer()
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@ -172,15 +204,13 @@ void SWRenderer::SwapBuffer()
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glFlush();
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OpenGL_SwapBuffers();
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GLInterface->SwapBuffers();
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GL_REPORT_ERRORD();
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swstats.ResetFrame();
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// Clear framebuffer
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glClearColor(0, 0, 0, 0);
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glClearDepth(1.0);
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#ifndef USE_GLES
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glClearDepth(1.0f);
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#endif
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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GL_REPORT_ERRORD();
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