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Reinstated texture target creation, cut them down to merely RGB.

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This commit is contained in:
Thomas Harte 2016-04-12 22:48:47 -04:00
parent 4be8053ba9
commit 04d1b65c93
2 changed files with 13 additions and 10 deletions
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19
Outputs/CRT/Internals/CRTOpenGL.cpp
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@ -62,6 +62,14 @@ OpenGLOutputBuilder::OpenGLOutputBuilder(unsigned int buffer_depth) :
} }
_buffer_builder = std::unique_ptr<CRTInputBufferBuilder>(new CRTInputBufferBuilder(buffer_depth)); _buffer_builder = std::unique_ptr<CRTInputBufferBuilder>(new CRTInputBufferBuilder(buffer_depth));
// Create intermediate textures and bind to slots 0, 1 and 2
glActiveTexture(GL_TEXTURE0);
compositeTexture = std::unique_ptr<OpenGL::TextureTarget>(new OpenGL::TextureTarget(IntermediateBufferWidth, IntermediateBufferHeight));
glActiveTexture(GL_TEXTURE1);
filteredYTexture = std::unique_ptr<OpenGL::TextureTarget>(new OpenGL::TextureTarget(IntermediateBufferWidth, IntermediateBufferHeight));
glActiveTexture(GL_TEXTURE2);
filteredTexture = std::unique_ptr<OpenGL::TextureTarget>(new OpenGL::TextureTarget(IntermediateBufferWidth, IntermediateBufferHeight));
// create the surce texture // create the surce texture
glGenTextures(1, &textureName); glGenTextures(1, &textureName);
glActiveTexture(GL_TEXTURE0 + first_supplied_buffer_texture_unit); glActiveTexture(GL_TEXTURE0 + first_supplied_buffer_texture_unit);
@ -92,14 +100,6 @@ OpenGLOutputBuilder::OpenGLOutputBuilder(unsigned int buffer_depth) :
// map that buffer too, for any CRT activity that may occur before the first draw // map that buffer too, for any CRT activity that may occur before the first draw
_output_buffer_data = (uint8_t *)glMapBufferRange(GL_ARRAY_BUFFER, 0, OutputVertexBufferDataSize, GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT); _output_buffer_data = (uint8_t *)glMapBufferRange(GL_ARRAY_BUFFER, 0, OutputVertexBufferDataSize, GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT);
// Create intermediate textures and bind to slots 0, 1 and 2
// glActiveTexture(GL_TEXTURE0);
// compositeTexture = std::unique_ptr<OpenGL::TextureTarget>(new OpenGL::TextureTarget(IntermediateBufferWidth, IntermediateBufferHeight));
// glActiveTexture(GL_TEXTURE1);
// filteredYTexture = std::unique_ptr<OpenGL::TextureTarget>(new OpenGL::TextureTarget(IntermediateBufferWidth, IntermediateBufferHeight));
// glActiveTexture(GL_TEXTURE2);
// filteredTexture = std::unique_ptr<OpenGL::TextureTarget>(new OpenGL::TextureTarget(IntermediateBufferWidth, IntermediateBufferHeight));
} }
OpenGLOutputBuilder::~OpenGLOutputBuilder() OpenGLOutputBuilder::~OpenGLOutputBuilder()
@ -134,6 +134,9 @@ void OpenGLOutputBuilder::draw_frame(unsigned int output_width, unsigned int out
// or 0 if no framebuffer is bound, in which case 0 is also what we want to supply to bind the implied framebuffer. So // or 0 if no framebuffer is bound, in which case 0 is also what we want to supply to bind the implied framebuffer. So
// it works either way. // it works either way.
glGetIntegerv(GL_FRAMEBUFFER_BINDING, (GLint *)&defaultFramebuffer); glGetIntegerv(GL_FRAMEBUFFER_BINDING, (GLint *)&defaultFramebuffer);
// TODO: is this sustainable, cross-platform? If so, why store it at all?
defaultFramebuffer = 0;
} }
// lock down any further work on the current frame // lock down any further work on the current frame

4
Outputs/CRT/Internals/TextureTarget.cpp
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@ -18,8 +18,8 @@ TextureTarget::TextureTarget(GLsizei width, GLsizei height) : _width(width), _he
glGenTextures(1, &_texture); glGenTextures(1, &_texture);
glBindTexture(GL_TEXTURE_2D, _texture); glBindTexture(GL_TEXTURE_2D, _texture);
uint8_t *emptySpace = new uint8_t[width*height*4]; uint8_t *emptySpace = new uint8_t[width*height*3];
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, (GLsizei)width, (GLsizei)height, 0, GL_RGBA, GL_UNSIGNED_BYTE, emptySpace); glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, (GLsizei)width, (GLsizei)height, 0, GL_RGB, GL_UNSIGNED_BYTE, emptySpace);
delete[] emptySpace; delete[] emptySpace;
glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, _texture, 0); glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, _texture, 0);