diff options
Diffstat (limited to 'video/out/opengl/utils.c')
| -rw-r--r-- | video/out/opengl/utils.c | 524 |
1 files changed, 211 insertions, 313 deletions
diff --git a/video/out/opengl/utils.c b/video/out/opengl/utils.c index b8fc24a52e..3b296d52de 100644 --- a/video/out/opengl/utils.c +++ b/video/out/opengl/utils.c @@ -1,371 +1,269 @@ -#include "common/msg.h" -#include "video/out/vo.h" +/* + * This file is part of mpv. + * Parts based on MPlayer code by Reimar Döffinger. + * + * mpv is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * mpv is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with mpv. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <stddef.h> +#include <stdint.h> +#include <stdlib.h> +#include <string.h> +#include <stdarg.h> +#include <assert.h> + +#include <libavutil/sha.h> +#include <libavutil/intreadwrite.h> +#include <libavutil/mem.h> + +#include "osdep/io.h" + +#include "common/common.h" +#include "options/path.h" +#include "stream/stream.h" +#include "formats.h" #include "utils.h" -// Standard parallel 2D projection, except y1 < y0 means that the coordinate -// system is flipped, not the projection. -void gl_transform_ortho(struct gl_transform *t, float x0, float x1, - float y0, float y1) +// GLU has this as gluErrorString (we don't use GLU, as it is legacy-OpenGL) +static const char *gl_error_to_string(GLenum error) { - if (y1 < y0) { - float tmp = y0; - y0 = tmp - y1; - y1 = tmp; + switch (error) { + case GL_INVALID_ENUM: return "INVALID_ENUM"; + case GL_INVALID_VALUE: return "INVALID_VALUE"; + case GL_INVALID_OPERATION: return "INVALID_OPERATION"; + case GL_INVALID_FRAMEBUFFER_OPERATION: return "INVALID_FRAMEBUFFER_OPERATION"; + case GL_OUT_OF_MEMORY: return "OUT_OF_MEMORY"; + default: return "unknown"; } - - t->m[0][0] = 2.0f / (x1 - x0); - t->m[0][1] = 0.0f; - t->m[1][0] = 0.0f; - t->m[1][1] = 2.0f / (y1 - y0); - t->t[0] = -(x1 + x0) / (x1 - x0); - t->t[1] = -(y1 + y0) / (y1 - y0); -} - -// Apply the effects of one transformation to another, transforming it in the -// process. In other words: post-composes t onto x -void gl_transform_trans(struct gl_transform t, struct gl_transform *x) -{ - struct gl_transform xt = *x; - x->m[0][0] = t.m[0][0] * xt.m[0][0] + t.m[0][1] * xt.m[1][0]; - x->m[1][0] = t.m[1][0] * xt.m[0][0] + t.m[1][1] * xt.m[1][0]; - x->m[0][1] = t.m[0][0] * xt.m[0][1] + t.m[0][1] * xt.m[1][1]; - x->m[1][1] = t.m[1][0] * xt.m[0][1] + t.m[1][1] * xt.m[1][1]; - gl_transform_vec(t, &x->t[0], &x->t[1]); -} - -void gl_transform_ortho_fbodst(struct gl_transform *t, struct fbodst fbo) -{ - int y_dir = fbo.flip ? -1 : 1; - gl_transform_ortho(t, 0, fbo.tex->params.w, 0, fbo.tex->params.h * y_dir); } -void ra_buf_pool_uninit(struct ra *ra, struct ra_buf_pool *pool) +void gl_check_error(GL *gl, struct mp_log *log, const char *info) { - for (int i = 0; i < pool->num_buffers; i++) - ra_buf_free(ra, &pool->buffers[i]); - - talloc_free(pool->buffers); - *pool = (struct ra_buf_pool){0}; + for (;;) { + GLenum error = gl->GetError(); + if (error == GL_NO_ERROR) + break; + mp_msg(log, MSGL_ERR, "%s: OpenGL error %s.\n", info, + gl_error_to_string(error)); + } } -static bool ra_buf_params_compatible(const struct ra_buf_params *new, - const struct ra_buf_params *old) +static int get_alignment(int stride) { - return new->type == old->type && - new->size <= old->size && - new->host_mapped == old->host_mapped && - new->host_mutable == old->host_mutable; + if (stride % 8 == 0) + return 8; + if (stride % 4 == 0) + return 4; + if (stride % 2 == 0) + return 2; + return 1; } -static bool ra_buf_pool_grow(struct ra *ra, struct ra_buf_pool *pool) +// upload a texture, handling things like stride and slices +// target: texture target, usually GL_TEXTURE_2D +// format, type: texture parameters +// dataptr, stride: image data +// x, y, width, height: part of the image to upload +void gl_upload_tex(GL *gl, GLenum target, GLenum format, GLenum type, + const void *dataptr, int stride, + int x, int y, int w, int h) { - struct ra_buf *buf = ra_buf_create(ra, &pool->current_params); - if (!buf) - return false; - - MP_TARRAY_INSERT_AT(NULL, pool->buffers, pool->num_buffers, pool->index, buf); - MP_VERBOSE(ra, "Resized buffer pool to size %d\n", pool->num_buffers); - return true; + int bpp = gl_bytes_per_pixel(format, type); + const uint8_t *data = dataptr; + int y_max = y + h; + if (w <= 0 || h <= 0 || !bpp) + return; + if (stride < 0) { + data += (h - 1) * stride; + stride = -stride; + } + gl->PixelStorei(GL_UNPACK_ALIGNMENT, get_alignment(stride)); + int slice = h; + if (gl->mpgl_caps & MPGL_CAP_ROW_LENGTH) { + // this is not always correct, but should work for MPlayer + gl->PixelStorei(GL_UNPACK_ROW_LENGTH, stride / bpp); + } else { + if (stride != bpp * w) + slice = 1; // very inefficient, but at least it works + } + for (; y + slice <= y_max; y += slice) { + gl->TexSubImage2D(target, 0, x, y, w, slice, format, type, data); + data += stride * slice; + } + if (y < y_max) + gl->TexSubImage2D(target, 0, x, y, w, y_max - y, format, type, data); + if (gl->mpgl_caps & MPGL_CAP_ROW_LENGTH) + gl->PixelStorei(GL_UNPACK_ROW_LENGTH, 0); + gl->PixelStorei(GL_UNPACK_ALIGNMENT, 4); } -struct ra_buf *ra_buf_pool_get(struct ra *ra, struct ra_buf_pool *pool, - const struct ra_buf_params *params) +mp_image_t *gl_read_fbo_contents(GL *gl, int fbo, int w, int h) { - assert(!params->initial_data); - - if (!ra_buf_params_compatible(params, &pool->current_params)) { - ra_buf_pool_uninit(ra, pool); - pool->current_params = *params; - } - - // Make sure we have at least one buffer available - if (!pool->buffers && !ra_buf_pool_grow(ra, pool)) - return NULL; - - // Make sure the next buffer is available for use - if (!ra->fns->buf_poll(ra, pool->buffers[pool->index]) && - !ra_buf_pool_grow(ra, pool)) - { + if (gl->es) + return NULL; // ES can't read from front buffer + mp_image_t *image = mp_image_alloc(IMGFMT_RGB24, w, h); + if (!image) return NULL; + gl->BindFramebuffer(GL_FRAMEBUFFER, fbo); + GLenum obj = fbo ? GL_COLOR_ATTACHMENT0 : GL_FRONT; + gl->PixelStorei(GL_PACK_ALIGNMENT, 1); + gl->ReadBuffer(obj); + //flip image while reading (and also avoid stride-related trouble) + for (int y = 0; y < h; y++) { + gl->ReadPixels(0, h - y - 1, w, 1, GL_RGB, GL_UNSIGNED_BYTE, + image->planes[0] + y * image->stride[0]); } - - struct ra_buf *buf = pool->buffers[pool->index++]; - pool->index %= pool->num_buffers; - - return buf; + gl->PixelStorei(GL_PACK_ALIGNMENT, 4); + gl->BindFramebuffer(GL_FRAMEBUFFER, 0); + return image; } -bool ra_tex_upload_pbo(struct ra *ra, struct ra_buf_pool *pbo, - const struct ra_tex_upload_params *params) +static void gl_vao_enable_attribs(struct gl_vao *vao) { - if (params->buf) - return ra->fns->tex_upload(ra, params); - - struct ra_tex *tex = params->tex; - size_t row_size = tex->params.dimensions == 2 ? params->stride : - tex->params.w * tex->params.format->pixel_size; - - struct ra_buf_params bufparams = { - .type = RA_BUF_TYPE_TEX_UPLOAD, - .size = row_size * tex->params.h * tex->params.d, - .host_mutable = true, - }; - - struct ra_buf *buf = ra_buf_pool_get(ra, pbo, &bufparams); - if (!buf) - return false; - - ra->fns->buf_update(ra, buf, 0, params->src, bufparams.size); - - struct ra_tex_upload_params newparams = *params; - newparams.buf = buf; - newparams.src = NULL; - - return ra->fns->tex_upload(ra, &newparams); -} + GL *gl = vao->gl; + + for (int n = 0; n < vao->num_entries; n++) { + const struct ra_renderpass_input *e = &vao->entries[n]; + GLenum type = 0; + bool normalized = false; + switch (e->type) { + case RA_VARTYPE_INT: + type = GL_INT; + break; + case RA_VARTYPE_FLOAT: + type = GL_FLOAT; + break; + case RA_VARTYPE_BYTE_UNORM: + type = GL_UNSIGNED_BYTE; + normalized = true; + break; + default: + abort(); + } + assert(e->dim_m == 1); -struct ra_layout std140_layout(struct ra_renderpass_input *inp) -{ - size_t el_size = ra_vartype_size(inp->type); - - // std140 packing rules: - // 1. The alignment of generic values is their size in bytes - // 2. The alignment of vectors is the vector length * the base count, with - // the exception of vec3 which is always aligned like vec4 - // 3. The alignment of arrays is that of the element size rounded up to - // the nearest multiple of vec4 - // 4. Matrices are treated like arrays of vectors - // 5. Arrays/matrices are laid out with a stride equal to the alignment - size_t size = el_size * inp->dim_v; - if (inp->dim_v == 3) - size += el_size; - if (inp->dim_m > 1) - size = MP_ALIGN_UP(size, sizeof(float[4])); - - return (struct ra_layout) { - .align = size, - .stride = size, - .size = size * inp->dim_m, - }; + gl->EnableVertexAttribArray(n); + gl->VertexAttribPointer(n, e->dim_v, type, normalized, + vao->stride, (void *)(intptr_t)e->offset); + } } -struct ra_layout std430_layout(struct ra_renderpass_input *inp) +void gl_vao_init(struct gl_vao *vao, GL *gl, int stride, + const struct ra_renderpass_input *entries, + int num_entries) { - size_t el_size = ra_vartype_size(inp->type); - - // std430 packing rules: like std140, except arrays/matrices are always - // "tightly" packed, even arrays/matrices of vec3s - size_t align = el_size * inp->dim_v; - if (inp->dim_v == 3 && inp->dim_m == 1) - align += el_size; - - return (struct ra_layout) { - .align = align, - .stride = align, - .size = align * inp->dim_m, + assert(!vao->vao); + assert(!vao->buffer); + + *vao = (struct gl_vao){ + .gl = gl, + .stride = stride, + .entries = entries, + .num_entries = num_entries, }; -} - -// Create a texture and a FBO using the texture as color attachments. -// fmt: texture internal format -// If the parameters are the same as the previous call, do not touch it. -// flags can be 0, or a combination of FBOTEX_FUZZY_W and FBOTEX_FUZZY_H. -// Enabling FUZZY for W or H means the w or h does not need to be exact. -bool fbotex_change(struct fbotex *fbo, struct ra *ra, struct mp_log *log, - int w, int h, const struct ra_format *fmt, int flags) -{ - int lw = w, lh = h; - - if (fbo->tex) { - int cw = w, ch = h; - int rw = fbo->tex->params.w, rh = fbo->tex->params.h; - if ((flags & FBOTEX_FUZZY_W) && cw < rw) - cw = rw; - if ((flags & FBOTEX_FUZZY_H) && ch < rh) - ch = rh; + gl->GenBuffers(1, &vao->buffer); - if (rw == cw && rh == ch && fbo->tex->params.format == fmt) - goto done; - } + if (gl->BindVertexArray) { + gl->BindBuffer(GL_ARRAY_BUFFER, vao->buffer); - if (flags & FBOTEX_FUZZY_W) - w = MP_ALIGN_UP(w, 256); - if (flags & FBOTEX_FUZZY_H) - h = MP_ALIGN_UP(h, 256); + gl->GenVertexArrays(1, &vao->vao); + gl->BindVertexArray(vao->vao); + gl_vao_enable_attribs(vao); + gl->BindVertexArray(0); - mp_verbose(log, "Create FBO: %dx%d (%dx%d)\n", lw, lh, w, h); - - if (!fmt || !fmt->renderable || !fmt->linear_filter) { - mp_err(log, "Format %s not supported.\n", fmt ? fmt->name : "(unset)"); - return false; + gl->BindBuffer(GL_ARRAY_BUFFER, 0); } +} - fbotex_uninit(fbo); - - *fbo = (struct fbotex) { - .ra = ra, - }; - - struct ra_tex_params params = { - .dimensions = 2, - .w = w, - .h = h, - .d = 1, - .format = fmt, - .src_linear = true, - .render_src = true, - .render_dst = true, - .storage_dst = true, - .blit_src = true, - }; - - fbo->tex = ra_tex_create(fbo->ra, ¶ms); - - if (!fbo->tex) { - mp_err(log, "Error: framebuffer could not be created.\n"); - fbotex_uninit(fbo); - return false; - } - -done: - - fbo->lw = lw; - fbo->lh = lh; +void gl_vao_uninit(struct gl_vao *vao) +{ + GL *gl = vao->gl; + if (!gl) + return; - fbo->fbo = (struct fbodst){ - .tex = fbo->tex, - }; + if (gl->DeleteVertexArrays) + gl->DeleteVertexArrays(1, &vao->vao); + gl->DeleteBuffers(1, &vao->buffer); - return true; + *vao = (struct gl_vao){0}; } -void fbotex_uninit(struct fbotex *fbo) +static void gl_vao_bind(struct gl_vao *vao) { - if (fbo->ra) { - ra_tex_free(fbo->ra, &fbo->tex); - *fbo = (struct fbotex) {0}; + GL *gl = vao->gl; + + if (gl->BindVertexArray) { + gl->BindVertexArray(vao->vao); + } else { + gl->BindBuffer(GL_ARRAY_BUFFER, vao->buffer); + gl_vao_enable_attribs(vao); + gl->BindBuffer(GL_ARRAY_BUFFER, 0); } } -struct timer_pool { - struct ra *ra; - ra_timer *timer; - bool running; // detect invalid usage - - uint64_t samples[VO_PERF_SAMPLE_COUNT]; - int sample_idx; - int sample_count; - - uint64_t sum; - uint64_t peak; -}; - -struct timer_pool *timer_pool_create(struct ra *ra) +static void gl_vao_unbind(struct gl_vao *vao) { - if (!ra->fns->timer_create) - return NULL; - - ra_timer *timer = ra->fns->timer_create(ra); - if (!timer) - return NULL; + GL *gl = vao->gl; - struct timer_pool *pool = talloc(NULL, struct timer_pool); - if (!pool) { - ra->fns->timer_destroy(ra, timer); - return NULL; + if (gl->BindVertexArray) { + gl->BindVertexArray(0); + } else { + for (int n = 0; n < vao->num_entries; n++) + gl->DisableVertexAttribArray(n); } - - *pool = (struct timer_pool){ .ra = ra, .timer = timer }; - return pool; } -void timer_pool_destroy(struct timer_pool *pool) +// Draw the vertex data (as described by the gl_vao_entry entries) in ptr +// to the screen. num is the number of vertexes. prim is usually GL_TRIANGLES. +// If ptr is NULL, then skip the upload, and use the data uploaded with the +// previous call. +void gl_vao_draw_data(struct gl_vao *vao, GLenum prim, void *ptr, size_t num) { - if (!pool) - return; - - pool->ra->fns->timer_destroy(pool->ra, pool->timer); - talloc_free(pool); -} + GL *gl = vao->gl; -void timer_pool_start(struct timer_pool *pool) -{ - if (!pool) - return; + if (ptr) { + gl->BindBuffer(GL_ARRAY_BUFFER, vao->buffer); + gl->BufferData(GL_ARRAY_BUFFER, num * vao->stride, ptr, GL_STREAM_DRAW); + gl->BindBuffer(GL_ARRAY_BUFFER, 0); + } - assert(!pool->running); - pool->ra->fns->timer_start(pool->ra, pool->timer); - pool->running = true; -} + gl_vao_bind(vao); -void timer_pool_stop(struct timer_pool *pool) -{ - if (!pool) - return; + gl->DrawArrays(prim, 0, num); - assert(pool->running); - uint64_t res = pool->ra->fns->timer_stop(pool->ra, pool->timer); - pool->running = false; - - if (res) { - // Input res into the buffer and grab the previous value - uint64_t old = pool->samples[pool->sample_idx]; - pool->sample_count = MPMIN(pool->sample_count + 1, VO_PERF_SAMPLE_COUNT); - pool->samples[pool->sample_idx++] = res; - pool->sample_idx %= VO_PERF_SAMPLE_COUNT; - pool->sum = pool->sum + res - old; - - // Update peak if necessary - if (res >= pool->peak) { - pool->peak = res; - } else if (pool->peak == old) { - // It's possible that the last peak was the value we just removed, - // if so we need to scan for the new peak - uint64_t peak = res; - for (int i = 0; i < VO_PERF_SAMPLE_COUNT; i++) - peak = MPMAX(peak, pool->samples[i]); - pool->peak = peak; - } - } + gl_vao_unbind(vao); } -struct mp_pass_perf timer_pool_measure(struct timer_pool *pool) +static void GLAPIENTRY gl_debug_cb(GLenum source, GLenum type, GLuint id, + GLenum severity, GLsizei length, + const GLchar *message, const void *userParam) { - if (!pool) - return (struct mp_pass_perf){0}; - - struct mp_pass_perf res = { - .peak = pool->peak, - .count = pool->sample_count, - }; - - int idx = pool->sample_idx - pool->sample_count + VO_PERF_SAMPLE_COUNT; - for (int i = 0; i < res.count; i++) { - idx %= VO_PERF_SAMPLE_COUNT; - res.samples[i] = pool->samples[idx++]; + // keep in mind that the debug callback can be asynchronous + struct mp_log *log = (void *)userParam; + int level = MSGL_ERR; + switch (severity) { + case GL_DEBUG_SEVERITY_NOTIFICATION:level = MSGL_V; break; + case GL_DEBUG_SEVERITY_LOW: level = MSGL_INFO; break; + case GL_DEBUG_SEVERITY_MEDIUM: level = MSGL_WARN; break; + case GL_DEBUG_SEVERITY_HIGH: level = MSGL_ERR; break; } - - if (res.count > 0) { - res.last = res.samples[res.count - 1]; - res.avg = pool->sum / res.count; - } - - return res; + mp_msg(log, level, "GL: %s\n", message); } -void mp_log_source(struct mp_log *log, int lev, const char *src) +void gl_set_debug_logger(GL *gl, struct mp_log *log) { - int line = 1; - if (!src) - return; - while (*src) { - const char *end = strchr(src, '\n'); - const char *next = end + 1; - if (!end) - next = end = src + strlen(src); - mp_msg(log, lev, "[%3d] %.*s\n", line, (int)(end - src), src); - line++; - src = next; - } + if (gl->DebugMessageCallback) + gl->DebugMessageCallback(log ? gl_debug_cb : NULL, log); } |