Changeset 3525

Timestamp:

Apr 11, 2011 9:38:53 PM (14 years ago)

Author:

ming

Message:

Re #1213: Fixed SDL OpenGL to run on Windows.

File:

• pjproject/branches/projects/2.0-dev/pjmedia/src/pjmedia-videodev/sdl_dev.c (modified) (6 diffs)

pjproject/branches/projects/2.0-dev/pjmedia/src/pjmedia-videodev/sdl_dev.c

@@ -127 +127 @@
 #if PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL
     GLuint                       texture;
+    void                        *tex_buf;
+    pj_size_t                    tex_buf_size;
 #endif
 #if defined(PJ_DARWINOS) && PJ_DARWINOS!=0
@@ -174 +176 @@
 static pj_status_t sdl_stream_stop(pjmedia_vid_dev_stream *strm);
 static pj_status_t sdl_stream_destroy(pjmedia_vid_dev_stream *strm);
+static void draw_gl(struct sdl_stream *stream, void *tex_buf);
 
 /* Operations */
@@ -448 +451 @@
         glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_DECAL);
         glGenTextures(1, &strm->texture);
+
+#if defined(PJ_WIN32) && PJ_WIN32 != 0
+        if (strm->vafp.framebytes > strm->tex_buf_size) {
+            strm->tex_buf_size = strm->vafp.framebytes;
+            strm->tex_buf = pj_pool_alloc(strm->pool, strm->vafp.framebytes);
+        }
+#endif
     } else
 #endif
@@ -514 +524 @@
         pjmedia_vid_event pevent;
 
+#if PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL
+#if defined(PJ_WIN32) && PJ_WIN32 != 0  
+        if (strm->param.rend_id == OPENGL_DEV_IDX) {
+            draw_gl(strm, strm->tex_buf);
+        }
+#endif
+#endif
         /**
          * The event polling must be placed in the same thread that
@@ -716 +733 @@
 }
 
+static void draw_gl(struct sdl_stream *stream, void *tex_buf)
+{
+    if (stream->texture) {
+        glBindTexture(GL_TEXTURE_2D, stream->texture);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+        glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,
+                     stream->rect.w, stream->rect.h, 0,
+                     GL_RGBA, GL_UNSIGNED_BYTE, tex_buf);
+        glBegin(GL_TRIANGLE_STRIP);
+        glTexCoord2f(0, 0); glVertex2i(0, 0);
+        glTexCoord2f(1, 0); glVertex2i(stream->rect.w, 0);
+        glTexCoord2f(0, 1); glVertex2i(0, stream->rect.h);
+        glTexCoord2f(1, 1); glVertex2i(stream->rect.w, stream->rect.h);
+        glEnd();
+        SDL_GL_SwapBuffers();
+    }
+}
+
 #if defined(PJ_DARWINOS) && PJ_DARWINOS!=0
 - (pj_status_t)put_frame
@@ -775 +811 @@
     }
 #if PJMEDIA_VIDEO_DEV_SDL_HAS_OPENGL
-     else if (stream->param.rend_id == OPENGL_DEV_IDX) {
-        if (frame && stream->texture) {
-            glBindTexture(GL_TEXTURE_2D, stream->texture);
-            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, 
-                            GL_NEAREST);
-            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER,
-                            GL_NEAREST);
-            glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA,
-                         stream->rect.w, stream->rect.h, 0,
-                         GL_RGBA, GL_UNSIGNED_BYTE, frame->buf);
-            glBegin(GL_TRIANGLE_STRIP);
-            glTexCoord2f(0, 0); glVertex2i(0, 0);
-            glTexCoord2f(1, 0); glVertex2i(stream->rect.w, 0);
-            glTexCoord2f(0, 1); glVertex2i(0, stream->rect.h);
-            glTexCoord2f(1, 1);
-            glVertex2i(stream->rect.w, stream->rect.h);
-            glEnd();
-            SDL_GL_SwapBuffers();
-        }
+    else if (stream->param.rend_id == OPENGL_DEV_IDX) {
+#if defined(PJ_WIN32) && PJ_WIN32 != 0
+        pj_assert(frame->size == stream->vafp.framebytes);
+        pj_memcpy(stream->tex_buf, frame->buf, frame->size);
+#else
+        draw_gl(stream, frame->buf);
+#endif
     }
 #endif