//// Glut callbacks ///// void GlGlut::display() { glClearColor(0, 0, 0, 1); glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT); glUseProgram(programObject); float projection[4][4]; Matrix_Perpsective(60.0, 1.0, 0.1, 100, projection); float modelview[4][4]; Matrix_LookAt(0, 0, 5, 0, 0, 0, 0, 1, 0, modelview); float temp[4][4]; Matrix_Translate(0.0, -1.0, 0.0, temp); Matrix_Multiplication(modelview, temp, modelview); Matrix_Rotate(x_angle, 0, 1, 0, temp); Matrix_Multiplication(modelview, temp, modelview); Matrix_Rotate(y_angle, 1, 0, 0, temp); Matrix_Multiplication(modelview, temp, modelview); Matrix_Scale(scale_size, scale_size, scale_size, temp); Matrix_Multiplication(modelview, temp, modelview); // Normal matrix is transpose of inverse of modelview's upper left 3x3 float normal[3][3]; matrix_inverse_3x3(modelview, normal); float modelview_projection[4][4]; Matrix_Multiplication(projection, modelview, modelview_projection); GLuint m = glGetUniformLocation(programObject, "m_modelview"); GLuint p = glGetUniformLocation(programObject, "m_mvp"); GLuint n = glGetUniformLocation(programObject, "m_normal"); // Send with transpose=true to convert to opengl's column major glUniformMatrix4fv(m, 1, GL_TRUE, &modelview[0][0]); glUniformMatrix4fv(p, 1, GL_TRUE, &modelview_projection[0][0]); glUniformMatrix3fv(n, 1, GL_TRUE, &normal[0][0]); if (programObject == phong_point) { float light_pos_loc[4] = {1.0, -1.0, 1.0, 1.0}; float (*light_pos)[4] = &light_pos_loc; if (phong_fixed_point) { // Multiply light's position by model view matrix to keep it // fixed with respect to mesh object float light_pos_mv[4]; matrix_multiply_point(modelview, light_pos_loc, light_pos_mv); light_pos = &light_pos_mv; } GLuint l = glGetUniformLocation(programObject, "light_pos"); glUniform4fv(l, 1, *light_pos); } mesh->render(programObject); glutSwapBuffers(); }
void setupFrame(void) { static Matrix world; static Matrix view; SVGA3dTextureState *ts; SVGA3dRenderState *rs; Matrix_Copy(view, gIdentityMatrix); Matrix_Translate(view, 0, 0, 3); SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_VIEW, view); Matrix_Copy(world, gIdentityMatrix); Matrix_RotateX(world, -60.0 * PI_OVER_180); Matrix_RotateY(world, gFPS.frame * 0.01f); SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_WORLD, world); SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_PROJECTION, perspectiveMat); SVGA3D_BeginSetRenderState(CID, &rs, 4); { rs[0].state = SVGA3D_RS_BLENDENABLE; rs[0].uintValue = FALSE; rs[1].state = SVGA3D_RS_ZENABLE; rs[1].uintValue = TRUE; rs[2].state = SVGA3D_RS_ZWRITEENABLE; rs[2].uintValue = TRUE; rs[3].state = SVGA3D_RS_ZFUNC; rs[3].uintValue = SVGA3D_CMP_LESS; } SVGA_FIFOCommitAll(); SVGA3D_BeginSetTextureState(CID, &ts, 4); { ts[0].stage = 0; ts[0].name = SVGA3D_TS_BIND_TEXTURE; ts[0].value = SVGA3D_INVALID_ID; ts[1].stage = 0; ts[1].name = SVGA3D_TS_COLOROP; ts[1].value = SVGA3D_TC_SELECTARG1; ts[2].stage = 0; ts[2].name = SVGA3D_TS_COLORARG1; ts[2].value = SVGA3D_TA_DIFFUSE; ts[3].stage = 0; ts[3].name = SVGA3D_TS_ALPHAARG1; ts[3].value = SVGA3D_TA_DIFFUSE; } SVGA_FIFOCommitAll(); }
void renderCube(float x, float y, Bool useShaders, Bool useHalf) { SVGA3dTextureState *ts; SVGA3dRenderState *rs; SVGA3dVertexDecl *decls; SVGA3dPrimitiveRange *ranges; static Matrix view; Matrix_Copy(view, gIdentityMatrix); Matrix_RotateX(view, 30.0 * M_PI / 180.0); Matrix_RotateY(view, gFPS.frame * 0.01f); Matrix_Translate(view, x, y, 15); if (useShaders) { SVGA3D_SetShader(CID, SVGA3D_SHADERTYPE_VS, MY_VSHADER_ID); SVGA3D_SetShader(CID, SVGA3D_SHADERTYPE_PS, MY_PSHADER_ID); SVGA3DUtil_SetShaderConstMatrix(CID, CONST_MAT_PROJ, SVGA3D_SHADERTYPE_VS, perspectiveMat); SVGA3DUtil_SetShaderConstMatrix(CID, CONST_MAT_VIEW, SVGA3D_SHADERTYPE_VS, view); } else { SVGA3D_SetShader(CID, SVGA3D_SHADERTYPE_VS, SVGA3D_INVALID_ID); SVGA3D_SetShader(CID, SVGA3D_SHADERTYPE_PS, SVGA3D_INVALID_ID); SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_VIEW, view); SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_WORLD, gIdentityMatrix); SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_PROJECTION, perspectiveMat); } SVGA3D_BeginSetRenderState(CID, &rs, 4); { rs[0].state = SVGA3D_RS_BLENDENABLE; rs[0].uintValue = FALSE; rs[1].state = SVGA3D_RS_ZENABLE; rs[1].uintValue = TRUE; rs[2].state = SVGA3D_RS_ZWRITEENABLE; rs[2].uintValue = TRUE; rs[3].state = SVGA3D_RS_ZFUNC; rs[3].uintValue = SVGA3D_CMP_LESS; } SVGA_FIFOCommitAll(); SVGA3D_BeginSetTextureState(CID, &ts, 4); { ts[0].stage = 0; ts[0].name = SVGA3D_TS_BIND_TEXTURE; ts[0].value = SVGA3D_INVALID_ID; ts[1].stage = 0; ts[1].name = SVGA3D_TS_COLOROP; ts[1].value = SVGA3D_TC_SELECTARG1; ts[2].stage = 0; ts[2].name = SVGA3D_TS_COLORARG1; ts[2].value = SVGA3D_TA_DIFFUSE; ts[3].stage = 0; ts[3].name = SVGA3D_TS_ALPHAARG1; ts[3].value = SVGA3D_TA_DIFFUSE; } SVGA_FIFOCommitAll(); SVGA3D_BeginDrawPrimitives(CID, &decls, 2, &ranges, 1); { decls[0].identity.usage = SVGA3D_DECLUSAGE_POSITION; decls[0].array.surfaceId = vertexSid; decls[0].array.stride = sizeof(MyVertex); if (useHalf) { decls[0].identity.type = SVGA3D_DECLTYPE_FLOAT16_4; decls[0].array.offset = offsetof(MyVertex, position16); } else { decls[0].identity.type = SVGA3D_DECLTYPE_FLOAT3; decls[0].array.offset = offsetof(MyVertex, position32); } decls[1].identity.type = SVGA3D_DECLTYPE_D3DCOLOR; decls[1].identity.usage = SVGA3D_DECLUSAGE_COLOR; decls[1].array.surfaceId = vertexSid; decls[1].array.stride = sizeof(MyVertex); decls[1].array.offset = offsetof(MyVertex, color); ranges[0].primType = SVGA3D_PRIMITIVE_TRIANGLELIST; ranges[0].primitiveCount = numTriangles; ranges[0].indexArray.surfaceId = indexSid; ranges[0].indexArray.stride = sizeof(uint16); ranges[0].indexWidth = sizeof(uint16); } SVGA_FIFOCommitAll(); SVGA3D_SetShader(CID, SVGA3D_SHADERTYPE_VS, SVGA3D_INVALID_ID); SVGA3D_SetShader(CID, SVGA3D_SHADERTYPE_PS, SVGA3D_INVALID_ID); }
void render(void) { SVGA3dTextureState *ts; SVGA3dRenderState *rs; SVGA3dVertexDecl *decls; SVGA3dPrimitiveRange *ranges; static Matrix view; Matrix_Copy(view, gIdentityMatrix); Matrix_Scale(view, 0.5, 0.5, 0.5, 1.0); if (lastMouseState.buttons & VMMOUSE_LEFT_BUTTON) { Matrix_RotateX(view, lastMouseState.y * 0.0001); Matrix_RotateY(view, lastMouseState.x * -0.0001); } else { Matrix_RotateX(view, 30.0 * M_PI / 180.0); Matrix_RotateY(view, gFPS.frame * 0.01f); } Matrix_Translate(view, 0, 0, 3); SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_VIEW, view); SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_WORLD, gIdentityMatrix); SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_PROJECTION, perspectiveMat); SVGA3D_BeginSetRenderState(CID, &rs, 4); { rs[0].state = SVGA3D_RS_BLENDENABLE; rs[0].uintValue = FALSE; rs[1].state = SVGA3D_RS_ZENABLE; rs[1].uintValue = TRUE; rs[2].state = SVGA3D_RS_ZWRITEENABLE; rs[2].uintValue = TRUE; rs[3].state = SVGA3D_RS_ZFUNC; rs[3].uintValue = SVGA3D_CMP_LESS; } SVGA_FIFOCommitAll(); SVGA3D_BeginSetTextureState(CID, &ts, 4); { ts[0].stage = 0; ts[0].name = SVGA3D_TS_BIND_TEXTURE; ts[0].value = SVGA3D_INVALID_ID; ts[1].stage = 0; ts[1].name = SVGA3D_TS_COLOROP; ts[1].value = SVGA3D_TC_SELECTARG1; ts[2].stage = 0; ts[2].name = SVGA3D_TS_COLORARG1; ts[2].value = SVGA3D_TA_DIFFUSE; ts[3].stage = 0; ts[3].name = SVGA3D_TS_ALPHAARG1; ts[3].value = SVGA3D_TA_DIFFUSE; } SVGA_FIFOCommitAll(); SVGA3D_BeginDrawPrimitives(CID, &decls, 2, &ranges, 1); { decls[0].identity.type = SVGA3D_DECLTYPE_FLOAT3; decls[0].identity.usage = SVGA3D_DECLUSAGE_POSITION; decls[0].array.surfaceId = vertexSid; decls[0].array.stride = sizeof(MyVertex); decls[0].array.offset = offsetof(MyVertex, position); decls[1].identity.type = SVGA3D_DECLTYPE_D3DCOLOR; decls[1].identity.usage = SVGA3D_DECLUSAGE_COLOR; decls[1].array.surfaceId = vertexSid; decls[1].array.stride = sizeof(MyVertex); decls[1].array.offset = offsetof(MyVertex, color); ranges[0].primType = SVGA3D_PRIMITIVE_TRIANGLELIST; ranges[0].primitiveCount = numTriangles; ranges[0].indexArray.surfaceId = indexSid; ranges[0].indexArray.stride = sizeof(uint16); ranges[0].indexWidth = sizeof(uint16); } SVGA_FIFOCommitAll(); }
static void drawCube(void) { static float angle = 0.5f; SVGA3dRect *rect; Matrix perspectiveMat; SVGA3dTextureState *ts; SVGA3dRenderState *rs; SVGA3dRect viewport = { 0, 0, surfWidth, surfHeight }; SVGA3D_SetRenderTarget(CID, SVGA3D_RT_COLOR0, &colorImage); SVGA3D_SetRenderTarget(CID, SVGA3D_RT_DEPTH, &depthImage); SVGA3D_SetViewport(CID, &viewport); SVGA3D_SetZRange(CID, 0.0f, 1.0f); SVGA3D_BeginSetRenderState(CID, &rs, 5); { rs[0].state = SVGA3D_RS_BLENDENABLE; rs[0].uintValue = FALSE; rs[1].state = SVGA3D_RS_ZENABLE; rs[1].uintValue = TRUE; rs[2].state = SVGA3D_RS_ZWRITEENABLE; rs[2].uintValue = TRUE; rs[3].state = SVGA3D_RS_ZFUNC; rs[3].uintValue = SVGA3D_CMP_LESS; rs[4].state = SVGA3D_RS_LIGHTINGENABLE; rs[4].uintValue = FALSE; } SVGA_FIFOCommitAll(); SVGA3D_BeginSetTextureState(CID, &ts, 4); { ts[0].stage = 0; ts[0].name = SVGA3D_TS_BIND_TEXTURE; ts[0].value = SVGA3D_INVALID_ID; ts[1].stage = 0; ts[1].name = SVGA3D_TS_COLOROP; ts[1].value = SVGA3D_TC_SELECTARG1; ts[2].stage = 0; ts[2].name = SVGA3D_TS_COLORARG1; ts[2].value = SVGA3D_TA_DIFFUSE; ts[3].stage = 0; ts[3].name = SVGA3D_TS_ALPHAARG1; ts[3].value = SVGA3D_TA_DIFFUSE; } SVGA_FIFOCommitAll(); /* * Draw a red border around the render target, to test edge * accuracy in Present. */ SVGA3D_BeginClear(CID, SVGA3D_CLEAR_COLOR | SVGA3D_CLEAR_DEPTH, 0xFF0000, 1.0f, 0, &rect, 1); *rect = viewport; SVGA_FIFOCommitAll(); /* * Draw the background color */ SVGA3D_BeginClear(CID, SVGA3D_CLEAR_COLOR | SVGA3D_CLEAR_DEPTH, 0x336699, 1.0f, 0, &rect, 1); rect->x = viewport.x + 1; rect->y = viewport.y + 1; rect->w = viewport.w - 2; rect->h = viewport.h - 2; SVGA_FIFOCommitAll(); SVGA3dVertexDecl *decls; SVGA3dPrimitiveRange *ranges; Matrix view; Matrix_Copy(view, gIdentityMatrix); Matrix_Scale(view, 0.5, 0.5, 0.5, 1.0); Matrix_RotateX(view, 30.0 * M_PI / 180.0); Matrix_RotateY(view, angle); Matrix_Translate(view, 0, 0, 2.2); angle += 0.02; Matrix_Perspective(perspectiveMat, 45.0f, 4.0f / 3.0f, 0.1f, 100.0f); SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_WORLD, gIdentityMatrix); SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_PROJECTION, perspectiveMat); SVGA3D_SetTransform(CID, SVGA3D_TRANSFORM_VIEW, view); SVGA3D_BeginDrawPrimitives(CID, &decls, 2, &ranges, 1); { decls[0].identity.type = SVGA3D_DECLTYPE_FLOAT3; decls[0].identity.usage = SVGA3D_DECLUSAGE_POSITION; decls[0].array.surfaceId = vertexSid; decls[0].array.stride = sizeof(MyVertex); decls[0].array.offset = offsetof(MyVertex, position); decls[1].identity.type = SVGA3D_DECLTYPE_D3DCOLOR; decls[1].identity.usage = SVGA3D_DECLUSAGE_COLOR; decls[1].array.surfaceId = vertexSid; decls[1].array.stride = sizeof(MyVertex); decls[1].array.offset = offsetof(MyVertex, color); ranges[0].primType = SVGA3D_PRIMITIVE_LINELIST; ranges[0].primitiveCount = numLines; ranges[0].indexArray.surfaceId = indexSid; ranges[0].indexArray.stride = sizeof(uint16); ranges[0].indexWidth = sizeof(uint16); } SVGA_FIFOCommitAll(); }