#include <epoxy/gl.h>
#include <stdio.h>
+#include <list>
#include <map>
#include <set>
#include <string>
YCBCR_OUTPUT_PLANAR,
};
+// Where (0,0) is taken to be in the output. If you want to render to an
+// OpenGL screen, you should keep the default of bottom-left, as that is
+// OpenGL's natural coordinate system. However, there are cases, such as if you
+// render to an FBO and read the pixels back into some other system, where
+// you'd want a top-left origin; if so, an additional flip step will be added
+// at the very end (but done in a vertex shader, so it will have zero extra
+// cost).
+//
+// Note that Movit's coordinate system in general consistently puts (0,0) in
+// the top left for _input_, no matter what you set as output origin.
+enum OutputOrigin {
+ OUTPUT_ORIGIN_BOTTOM_LEFT,
+ OUTPUT_ORIGIN_TOP_LEFT,
+};
+
// A node in the graph; basically an effect and some associated information.
class Node {
public:
Node *output_node;
GLuint glsl_program_num; // Owned by the resource_pool.
+
+ // Position and texcoord attribute indexes, although it doesn't matter
+ // which is which, because they contain the same data.
+ std::set<GLint> attribute_indexes;
+
bool input_needs_mipmaps;
// Inputs are only inputs from other phases (ie., those that come from RTT);
std::vector<Uniform<float> > uniforms_vec4;
std::vector<Uniform<Eigen::Matrix3d> > uniforms_mat3;
+ GLuint ubo; // GL_INVALID_INDEX if not using UBOs.
+ GLuint uniform_block_index;
+ std::vector<char> ubo_data;
+
// For measurement of GPU time used.
- GLuint timer_query_object;
+ std::list<GLuint> timer_query_objects_running;
+ std::list<GLuint> timer_query_objects_free;
uint64_t time_elapsed_ns;
uint64_t num_measured_iterations;
};
// will create its own that is not shared with anything else. Does not take
// ownership of the passed-in ResourcePool, but will naturally take ownership
// of its own internal one if created.
- EffectChain(float aspect_nom, float aspect_denom, ResourcePool *resource_pool = NULL);
+ EffectChain(float aspect_nom, float aspect_denom, ResourcePool *resource_pool = NULL, GLenum intermediate_format = GL_RGBA16F);
~EffectChain();
// User API:
inputs.push_back(input3);
return add_effect(effect, inputs);
}
+ Effect *add_effect(Effect *effect, Effect *input1, Effect *input2, Effect *input3, Effect *input4) {
+ std::vector<Effect *> inputs;
+ inputs.push_back(input1);
+ inputs.push_back(input2);
+ inputs.push_back(input3);
+ inputs.push_back(input4);
+ return add_effect(effect, inputs);
+ }
+ Effect *add_effect(Effect *effect, Effect *input1, Effect *input2, Effect *input3, Effect *input4, Effect *input5) {
+ std::vector<Effect *> inputs;
+ inputs.push_back(input1);
+ inputs.push_back(input2);
+ inputs.push_back(input3);
+ inputs.push_back(input4);
+ inputs.push_back(input5);
+ return add_effect(effect, inputs);
+ }
Effect *add_effect(Effect *effect, const std::vector<Effect *> &inputs);
- // Adds an RGB output. Note that you can only have one output.
+ // Adds an RGBA output. Note that you can have at most one RGBA output and one
+ // Y'CbCr output (see below for details).
void add_output(const ImageFormat &format, OutputAlphaFormat alpha_format);
// Adds an YCbCr output. Note that you can only have one output.
// Currently, only chunked packed output is supported, and only 4:4:4
// (so chroma_subsampling_x and chroma_subsampling_y must both be 1).
+ //
+ // If you have both RGBA and Y'CbCr output, the RGBA output will come
+ // in the last draw buffer. Also, <format> and <alpha_format> must be
+ // identical between the two.
void add_ycbcr_output(const ImageFormat &format, OutputAlphaFormat alpha_format,
const YCbCrFormat &ycbcr_format,
YCbCrOutputSplitting output_splitting = YCBCR_OUTPUT_INTERLEAVED);
this->num_dither_bits = num_bits;
}
+ // Set where (0,0) is taken to be in the output. The default is
+ // OUTPUT_ORIGIN_BOTTOM_LEFT, which is usually what you want
+ // (see OutputOrigin above for more details).
+ void set_output_origin(OutputOrigin output_origin)
+ {
+ this->output_origin = output_origin;
+ }
+
void finalize();
// Measure the GPU time used for each actual phase during rendering.
// single-sampler input, or from an RTT texture.
GLenum get_input_sampler(Node *node, unsigned input_num) const;
+ // Whether input <input_num> of <node> corresponds to a single sampler
+ // (see get_input_sampler()). Normally, you should not need to call this;
+ // however, if the input Effect has set override_texture_bounce(),
+ // this will return false, and you could be flexible and check it first
+ // if you want.
+ GLenum has_input_sampler(Node *node, unsigned input_num) const;
+
// Get the current resource pool assigned to this EffectChain.
// Primarily to let effects allocate textures as needed.
// Any resources you get from the pool must be returned to the pool
Phase *construct_phase(Node *output, std::map<Node *, Phase *> *completed_effects);
// Execute one phase, ie. set up all inputs, effects and outputs, and render the quad.
- void execute_phase(Phase *phase, bool last_phase, std::map<Phase *, GLuint> *output_textures, std::set<Phase *> *generated_mipmaps);
+ void execute_phase(Phase *phase, bool last_phase,
+ std::set<GLint> *bound__attribute_indices,
+ std::map<Phase *, GLuint> *output_textures,
+ std::set<Phase *> *generated_mipmaps);
// Set up uniforms for one phase. The program must already be bound.
void setup_uniforms(Phase *phase);
ImageFormat output_format;
OutputAlphaFormat output_alpha_format;
- enum OutputColorType { OUTPUT_COLOR_RGB, OUTPUT_COLOR_YCBCR };
- OutputColorType output_color_type;
- YCbCrFormat output_ycbcr_format; // If output_color_type == OUTPUT_COLOR_YCBCR.
- YCbCrOutputSplitting output_ycbcr_splitting; // If output_color_type == OUTPUT_COLOR_YCBCR.
+ bool output_color_rgba, output_color_ycbcr;
+ YCbCrFormat output_ycbcr_format; // If output_color_ycbcr is true.
+ YCbCrOutputSplitting output_ycbcr_splitting; // If output_color_ycbcr is true.
std::vector<Node *> nodes;
std::map<Effect *, Node *> node_map;
std::vector<Input *> inputs; // Also contained in nodes.
std::vector<Phase *> phases;
+ GLenum intermediate_format;
unsigned num_dither_bits;
+ OutputOrigin output_origin;
bool finalized;
+ GLuint vbo; // Contains vertex and texture coordinate data.
ResourcePool *resource_pool;
bool owns_resource_pool;
projects / movit / blobdiff