238 lines
6.8 KiB
C++
238 lines
6.8 KiB
C++
// Copyright (C) 2003-2009 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official Git repository and contact information can be found at
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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 "RasterFont.h"
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#include "SWRenderer.h"
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#include "SWStatistics.h"
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#include "OnScreenDisplay.h"
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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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// Rasterfont isn't compatible with GLES
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// degasus: I think it does, but I can't test it
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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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}
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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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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 sampler2D Texture;\n"
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"void main() {\n"
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" " PREC " vec4 tmpcolor;\n"
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" tmpcolor = texture2D(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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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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glGenTextures(1, &s_RenderTarget);
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CreateShaders();
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// TODO: Enable for GLES once RasterFont supports GLES
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#ifndef USE_GLES
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s_pfont = new RasterFont();
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glEnable(GL_TEXTURE_2D);
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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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#ifndef USE_GLES
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int nBackbufferWidth = (int)GLInterface->GetBackBufferWidth();
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int nBackbufferHeight = (int)GLInterface->GetBackBufferHeight();
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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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#endif
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}
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void SWRenderer::DrawDebugText()
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{
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char debugtext_buffer[8192];
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char *p = debugtext_buffer;
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p[0] = 0;
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if (g_SWVideoConfig.bShowStats)
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{
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p+=sprintf(p,"Objects: %i\n",swstats.thisFrame.numDrawnObjects);
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p+=sprintf(p,"Primitives: %i\n",swstats.thisFrame.numPrimatives);
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p+=sprintf(p,"Vertices Loaded: %i\n",swstats.thisFrame.numVerticesLoaded);
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p+=sprintf(p,"Triangles Input: %i\n",swstats.thisFrame.numTrianglesIn);
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p+=sprintf(p,"Triangles Rejected: %i\n",swstats.thisFrame.numTrianglesRejected);
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p+=sprintf(p,"Triangles Culled: %i\n",swstats.thisFrame.numTrianglesCulled);
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p+=sprintf(p,"Triangles Clipped: %i\n",swstats.thisFrame.numTrianglesClipped);
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p+=sprintf(p,"Triangles Drawn: %i\n",swstats.thisFrame.numTrianglesDrawn);
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p+=sprintf(p,"Rasterized Pix: %i\n",swstats.thisFrame.rasterizedPixels);
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p+=sprintf(p,"TEV Pix In: %i\n",swstats.thisFrame.tevPixelsIn);
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p+=sprintf(p,"TEV Pix Out: %i\n",swstats.thisFrame.tevPixelsOut);
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}
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// Render a shadow, and then the text.
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SWRenderer::RenderText(debugtext_buffer, 21, 21, 0xDD000000);
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SWRenderer::RenderText(debugtext_buffer, 20, 20, 0xFFFFFF00);
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}
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#ifdef ANDROID
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// XXX: This /really/ shouldn't be here
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// But for now, we don't have a generic way for all backends to draw the buttons on screen.
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// Once that is implemented, we can remove this
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void DrawButton(GLuint tex, float *coords)
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{
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//Texture rectangle uses pixel coordinates
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#ifndef USE_GLES
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GLfloat u_max = (GLfloat)width;
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GLfloat v_max = (GLfloat)height;
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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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glBindTexture(TEX2D, tex);
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glVertexAttribPointer(attr_pos, 2, GL_FLOAT, GL_FALSE, 0, coords);
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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(TEX2D, 0);
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}
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#endif
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void SWRenderer::DrawTexture(u8 *texture, int width, int height)
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{
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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_2D, s_RenderTarget);
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glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)width, (GLsizei)height, 0, GL_RGBA, GL_UNSIGNED_BYTE, texture);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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glUseProgram(program);
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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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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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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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glUniform1i(uni_tex, 0);
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glActiveTexture(GL_TEXTURE0);
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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_2D, 0);
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GL_REPORT_ERRORD();
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}
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void SWRenderer::SwapBuffer()
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{
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// Do our OSD callbacks
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OSD::DoCallbacks(OSD::OSD_ONFRAME);
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DrawDebugText();
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glFlush();
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GLInterface->Swap();
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swstats.ResetFrame();
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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GL_REPORT_ERRORD();
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}
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