X-Git-Url: https://git.sesse.net/?p=movit;a=blobdiff_plain;f=resource_pool.cpp;h=2298c3c7342d5ee7b264c17800aedb311319e1a1;hp=e5f8988fc999b51449191b22768dcb341f936583;hb=refs%2Fheads%2Fepoxy;hpb=c1118618a82c0b3b2e7c87ee74fa3c82c5b5754a diff --git a/resource_pool.cpp b/resource_pool.cpp index e5f8988..2298c3c 100644 --- a/resource_pool.cpp +++ b/resource_pool.cpp @@ -1,20 +1,29 @@ -#include "resource_pool.h" - -#include +#include #include - +#include +#include #include #include #include #include +#include #include "init.h" +#include "resource_pool.h" #include "util.h" using namespace std; -ResourcePool::ResourcePool(size_t program_freelist_max_length) - : program_freelist_max_length(program_freelist_max_length) { +namespace movit { + +ResourcePool::ResourcePool(size_t program_freelist_max_length, + size_t texture_freelist_max_bytes, + size_t fbo_freelist_max_length) + : program_freelist_max_length(program_freelist_max_length), + texture_freelist_max_bytes(texture_freelist_max_bytes), + fbo_freelist_max_length(fbo_freelist_max_length), + texture_freelist_bytes(0) +{ pthread_mutex_init(&lock, NULL); } @@ -29,12 +38,36 @@ ResourcePool::~ResourcePool() } assert(programs.empty()); assert(program_shaders.empty()); + + for (list::const_iterator freelist_it = texture_freelist.begin(); + freelist_it != texture_freelist.end(); + ++freelist_it) { + GLuint free_texture_num = *freelist_it; + assert(texture_formats.count(free_texture_num) != 0); + texture_freelist_bytes -= estimate_texture_size(texture_formats[free_texture_num]); + texture_formats.erase(free_texture_num); + glDeleteTextures(1, &free_texture_num); + check_error(); + } + assert(texture_formats.empty()); + assert(texture_freelist_bytes == 0); + + for (list::const_iterator freelist_it = fbo_freelist.begin(); + freelist_it != fbo_freelist.end(); + ++freelist_it) { + GLuint free_fbo_num = *freelist_it; + assert(fbo_formats.count(free_fbo_num) != 0); + fbo_formats.erase(free_fbo_num); + glDeleteFramebuffers(1, &free_fbo_num); + check_error(); + } + assert(fbo_formats.empty()); } void ResourcePool::delete_program(GLuint glsl_program_num) { bool found_program = false; - for (std::map, GLuint>::iterator program_it = programs.begin(); + for (map, GLuint>::iterator program_it = programs.begin(); program_it != programs.end(); ++program_it) { if (program_it->second == glsl_program_num) { @@ -46,7 +79,7 @@ void ResourcePool::delete_program(GLuint glsl_program_num) assert(found_program); glDeleteProgram(glsl_program_num); - std::map >::iterator shader_it = + map >::iterator shader_it = program_shaders.find(glsl_program_num); assert(shader_it != program_shaders.end()); @@ -86,6 +119,15 @@ GLuint ResourcePool::compile_glsl_program(const string& vertex_shader, const str glLinkProgram(glsl_program_num); check_error(); + GLint success; + glGetProgramiv(glsl_program_num, GL_LINK_STATUS, &success); + if (success == GL_FALSE) { + GLchar error_log[1024] = {0}; + glGetProgramInfoLog(glsl_program_num, 1024, NULL, error_log); + fprintf(stderr, "Error linking program: %s\n", error_log); + exit(1); + } + if (movit_debug_level == MOVIT_DEBUG_ON) { // Output shader to a temporary file, for easier debugging. static int compiled_shader_num = 0; @@ -130,6 +172,24 @@ void ResourcePool::release_glsl_program(GLuint glsl_program_num) GLuint ResourcePool::create_2d_texture(GLint internal_format, GLsizei width, GLsizei height) { + pthread_mutex_lock(&lock); + // See if there's a texture on the freelist we can use. + for (list::iterator freelist_it = texture_freelist.begin(); + freelist_it != texture_freelist.end(); + ++freelist_it) { + GLuint texture_num = *freelist_it; + map::const_iterator format_it = texture_formats.find(texture_num); + assert(format_it != texture_formats.end()); + if (format_it->second.internal_format == internal_format && + format_it->second.width == width && + format_it->second.height == height) { + texture_freelist_bytes -= estimate_texture_size(format_it->second); + texture_freelist.erase(freelist_it); + pthread_mutex_unlock(&lock); + return texture_num; + } + } + // Find any reasonable format given the internal format; OpenGL validates it // even though we give NULL as pointer. GLenum format; @@ -140,33 +200,217 @@ GLuint ResourcePool::create_2d_texture(GLint internal_format, GLsizei width, GLs case GL_SRGB8_ALPHA8: format = GL_RGBA; break; + case GL_RGB32F: + case GL_RGB16F: + case GL_RGB8: + case GL_SRGB8: + format = GL_RGB; + break; case GL_RG32F: case GL_RG16F: + case GL_RG8: format = GL_RG; break; - case GL_LUMINANCE8: - format = GL_LUMINANCE; + case GL_R32F: + case GL_R16F: + case GL_R8: + format = GL_RED; break; default: // TODO: Add more here as needed. assert(false); } + // Same with type; GLES is stricter than desktop OpenGL here. + GLenum type; + switch (internal_format) { + case GL_RGBA32F_ARB: + case GL_RGBA16F_ARB: + case GL_RGB32F: + case GL_RGB16F: + case GL_RG32F: + case GL_RG16F: + case GL_R32F: + case GL_R16F: + type = GL_FLOAT; + break; + case GL_SRGB8_ALPHA8: + case GL_SRGB8: + case GL_RGBA8: + case GL_RGB8: + case GL_RG8: + case GL_R8: + type = GL_UNSIGNED_BYTE; + break; + default: + // TODO: Add more here as needed. + assert(false); + } + + GLuint texture_num; glGenTextures(1, &texture_num); check_error(); glBindTexture(GL_TEXTURE_2D, texture_num); check_error(); - glTexImage2D(GL_TEXTURE_2D, 0, internal_format, width, height, 0, format, GL_UNSIGNED_BYTE, NULL); + glTexImage2D(GL_TEXTURE_2D, 0, internal_format, width, height, 0, format, type, NULL); check_error(); glBindTexture(GL_TEXTURE_2D, 0); check_error(); + Texture2D texture_format; + texture_format.internal_format = internal_format; + texture_format.width = width; + texture_format.height = height; + assert(texture_formats.count(texture_num) == 0); + texture_formats.insert(make_pair(texture_num, texture_format)); + + pthread_mutex_unlock(&lock); return texture_num; } void ResourcePool::release_2d_texture(GLuint texture_num) { - glDeleteTextures(1, &texture_num); + pthread_mutex_lock(&lock); + texture_freelist.push_front(texture_num); + assert(texture_formats.count(texture_num) != 0); + texture_freelist_bytes += estimate_texture_size(texture_formats[texture_num]); + + while (texture_freelist_bytes > texture_freelist_max_bytes) { + GLuint free_texture_num = texture_freelist.front(); + texture_freelist.pop_front(); + assert(texture_formats.count(free_texture_num) != 0); + texture_freelist_bytes -= estimate_texture_size(texture_formats[free_texture_num]); + texture_formats.erase(free_texture_num); + glDeleteTextures(1, &free_texture_num); + check_error(); + + // Delete any FBO related to this texture. + for (list::iterator fbo_freelist_it = fbo_freelist.begin(); + fbo_freelist_it != fbo_freelist.end(); ) { + GLuint fbo_num = *fbo_freelist_it; + map::const_iterator format_it = fbo_formats.find(fbo_num); + assert(format_it != fbo_formats.end()); + if (format_it->second.texture_num == free_texture_num) { + glDeleteFramebuffers(1, &fbo_num); + fbo_freelist.erase(fbo_freelist_it++); + } else { + ++fbo_freelist_it; + } + } + } + pthread_mutex_unlock(&lock); +} + +GLuint ResourcePool::create_fbo(void *context, GLuint texture_num) +{ + pthread_mutex_lock(&lock); + // See if there's an FBO on the freelist we can use. + for (list::iterator freelist_it = fbo_freelist.begin(); + freelist_it != fbo_freelist.end(); + ++freelist_it) { + GLuint fbo_num = *freelist_it; + map::const_iterator format_it = fbo_formats.find(fbo_num); + assert(format_it != fbo_formats.end()); + if (format_it->second.context == context && + format_it->second.texture_num == texture_num) { + fbo_freelist.erase(freelist_it); + pthread_mutex_unlock(&lock); + return fbo_num; + } + } + + // Create a new one. + GLuint fbo_num; + glGenFramebuffers(1, &fbo_num); + check_error(); + glBindFramebuffer(GL_FRAMEBUFFER, fbo_num); + check_error(); + glFramebufferTexture2D( + GL_FRAMEBUFFER, + GL_COLOR_ATTACHMENT0, + GL_TEXTURE_2D, + texture_num, + 0); check_error(); + GLenum status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT); + assert(status == GL_FRAMEBUFFER_COMPLETE); + glBindFramebuffer(GL_FRAMEBUFFER, 0); + check_error(); + + FBO fbo_format; + fbo_format.context = context; + fbo_format.texture_num = texture_num; + assert(fbo_formats.count(fbo_num) == 0); + fbo_formats.insert(make_pair(fbo_num, fbo_format)); + + pthread_mutex_unlock(&lock); + return fbo_num; +} + +void ResourcePool::release_fbo(GLuint fbo_num) +{ + pthread_mutex_lock(&lock); + fbo_freelist.push_front(fbo_num); + assert(fbo_formats.count(fbo_num) != 0); + + while (fbo_freelist.size() > fbo_freelist_max_length) { + GLuint free_fbo_num = fbo_freelist.front(); + fbo_freelist.pop_front(); + assert(fbo_formats.count(free_fbo_num) != 0); + fbo_formats.erase(free_fbo_num); + glDeleteFramebuffers(1, &free_fbo_num); + check_error(); + } + pthread_mutex_unlock(&lock); } + +size_t ResourcePool::estimate_texture_size(const Texture2D &texture_format) +{ + size_t bytes_per_pixel; + + switch (texture_format.internal_format) { + case GL_RGBA32F_ARB: + bytes_per_pixel = 16; + break; + case GL_RGBA16F_ARB: + bytes_per_pixel = 8; + break; + case GL_RGB32F_ARB: + bytes_per_pixel = 12; + break; + case GL_RGB16F_ARB: + bytes_per_pixel = 6; + break; + case GL_RGBA8: + case GL_SRGB8_ALPHA8: + bytes_per_pixel = 4; + break; + case GL_RGB8: + case GL_SRGB8: + bytes_per_pixel = 3; + break; + case GL_RG32F: + bytes_per_pixel = 8; + break; + case GL_RG16F: + bytes_per_pixel = 4; + break; + case GL_R32F: + bytes_per_pixel = 4; + break; + case GL_R16F: + bytes_per_pixel = 2; + break; + case GL_R8: + bytes_per_pixel = 1; + break; + default: + // TODO: Add more here as needed. + assert(false); + } + + return texture_format.width * texture_format.height * bytes_per_pixel; +} + +} // namespace movit